Hi there! I'm Mew and I'm a nerdy English Adventure Time fan who likes making lists. Here's a buncha tables comparing the US and UK airdates for the show, with the production numbers thrown in cause hey, why not. (Well, mostly it's because the UK sometimes aired 'em in production order, sometimes in US broadcast order, and sometimes in whatever damn order they felt like.)

Seasons 1 and 2 are missing because I didn't start keeping track of the UK premiere dates until season 3 (if anyone happens to have the UK premiere dates for season 1/2, please contact me and I'll add 'em).

Episodes listed in pink background used to air in the UK but were pulled in late 2013 (except for "Hot Diggity Doom"/"The Comet", which were pulled in mid-2018). Episodes listed in red never aired in the UK and are considered to be "banned" episodes.

Also I used the original order intended by the crew, not CN's silly reordering, because screw that we go with the crew's order here. :U

Season Three | Season Four | Season Five | Season Six | Season Seven | Season Eight | Season Nine | Distant Lands


Season 3
Production Order
US Broadcast Order
UK Broadcast Order
Conquest of Cuteness
(1008-053)		 Conquest of Cuteness
(11 July 2011)

Conquest of Cuteness
(02 April 2012)

Morituri te Salutamus
(1008-054)		 Morituri te Salutamus
(18 July 2011)		 Morituri te Salutamus
(03 April 2012)

Hitman
(1008-055)

 Memory of a Memory
(25 July 2011)		 Too Young
(04 April 2012)
The Monster
(1008-056)		 Hitman
(01 August 2011)		 Hitman
(05 April 2012)
Memory of a Memory
(1008-057)		 Too Young
(08 August 2011)		 Memory of a Memory
(06 April 2012)
Fionna and Cake
(1008-058)		 The Monster
(15 August 2011)		 Thank You
(09 April 2012)
Too Young
(1008-059)		 Still
(22 August 2011)		 Fionna and Cake
(10 April 2012)
Still
(1008-060)		 Wizard Battle
(29 August 2011)		 The Monster
(11 April 2012)
Wizard Battle
(1008-061)		 Fionna and Cake
(August 2011 - internet leak
05 September 2011 - official)		 Still
(12 April 2012)
What Was Missing
(1008-062)		 What Was Missing
(26 September 2011)		 Wizard Battle
(13 April 2012)
Thank You
(1008-063)		 Apple Thief
(03 October 2011)		 What Was Missing
(16 April 2012)
From Bad to Worse
(1008-064)		 The Creeps
(17 October 2011)		 Apple Thief
(17 April 2012)
Beautopia
(1008-065)		 From Bad to Worse
(24 October 2011)		 From Bad to Worse
(18 April 2012)
No One Can Hear You
(1008-066)		 Beautopia
(07 November 2011)		 Beautopia
(19 April 2012)
Apple Thief
(1008-067)		 No One Can Hear You
(14 November 2011)		 No One Can Hear You
(11 June 2012)
Holly Jolly Secrets part 1 & 2
(1008-068 / 1008-069)		 Jake vs. Me-Mow
(21 November 2011)		 The Creeps
(18 June 2012)
The Creeps
(1008-070)		 Thank You
(23 November 2011)		 The New Frontier
(25 June 2012)
Jake vs. Me-Mow
(1008-071)		 The New Frontier
(28 November 2011)		 Jake vs Me-Mow
(02 July 2012)
The New Frontier
(1008-072)		 Holly Jolly Secrets part 1 & 2
(05 December 2011)		 Marceline's Closet
(09 July 2012)
Marceline's Closet
(1008-073)		 Marceline's Closet
(12 December 2011)		 Incendium
(16 July 2012)
Incendium
(1008-074)		 Paper Pete
(16 January 2012)		 Holly Jolly Secrets part 1 & 2
(24 July 2012 - unannounced
03 September 2012 - official)
Paper Pete
(1008-075)		 Another Way
(23 January 2012)

Paper Pete
(10 September 2012)

Another Way
(1008-076)		 Ghost Princess
(30 January 2012)		 Another Way
(10 September 2012)
Ghost Princess
(1008-077)		 Dad's Dungeon
(06 February 2012)		 Ghost Princess
(17 September 2012)
Dad's Dungeon
(1008-078)		 Incendium
(13 February 2012)		 Dad's Dungeon
(24 September 2012)


Season 4
Production Order US Broadcast Order UK Broadcast Order
Five Short Graybles
(1008-079)		 Hot to the Touch
(11 March 2012 - internet leak
02 April 2012 - official)		 Beyond This Earthly Realm
(30 October 2012 - marathon)

Dream of Love
(1008-080)

 Five Short Graybles
(09 April 2012)		 Gotcha!
(30 October 2012 - marathon)
Web Weirdos
(1008-081)		 Web Weirdos
(16 April 2012)		 Princess Monster Wife
(03 November 2012 - marathon)
Hot to the Touch
(1008-082)		 Dream of Love
(23 April 2012)		 Goliad
(03 November 2012 - marathon)
In Your Footsteps
(1008-083)

Return to the Nightosphere
(30 April 2012)

 Dream of Love
(04 November 2012 - unannounced; marathon
05 November 2012 - official)
Hug Wolf
(1008-084)		 Daddy's Little Monster
(30 April 2012)		 Five Short Graybles
(04 November 2012 - unannounced; marathon
05 November 2012 - official)
Return to the Nightosphere
(1008-085)		 In Your Footsteps
(07 May 2012)		 In Your Footsteps
(04 November 2012 - unannounced; marathon
19 November 2012 - official)
Daddy's Little Monster
(1008-086)		 Hug Wolf
(14 May 2012)		 Hug Wolf
(04 November 2012 - unannounced; marathon
19 November 2012 - official)
Goliad
(1008-087)		 Princess Monster Wife
(28 May 2012)		 Web Weirdos
(12 November 2012)
Princess Monster Wife
(1008-088)		 Goliad
(04 June 2012)		 Hot to the Touch
(12 November 2012)
Beyond This Earthly Realm
(1008-089)		 Beyond This Earthly Realm
(11 June 2012)		 Return to the Nightosphere
(26 November 2012)
Gotcha!
(1008-090)		 Gotcha!
(18 June 2012)		 Daddy's Little Monster
(26 November 2012)
Princess Cookie
(1008-091)		 Princess Cookie
(25 June 2012)		 Princess Cookie
(04 February 2013)
Card Wars
(1008-092)		 Card Wars
(16 July 2012)		 Card Wars
(11 February 2013)

Sons of Mars
(1008-093)

 Sons of Mars
(23 July 2012)		 Sons of Mars
(18 February 2013 - marathon)
Burning Low
(1008-094)		 Burning Low
(30 July 2012)		 Burning Low
(25 February 2013)
BMO Noire
(1008-095)		 BMO Noire
(06 August 2012)		 King Worm
(01 April 2013)
King Worm
(1008-096)		 King Worm
(13 August 2012)		 BMO Noire
(08 April 2013)
Who Would Win
(1008-097)		 Lady and Peebles
(20 August 2012)		 Who Would Win
(15 April 2013)
Lady and Peebles
(1008-098)		 You Made Me
(27 August 2012)		 Lady and Peebles
(22 April 2013)
You Made Me
(1008-099)		 Who Would Win
(03 September 2012)		 The Hard Easy
(29 April 2013)
The Hard Easy
(1008-100)		 Ignition Point
(17 September 2012)		 You Made Me
(13 May 2013)

Ignition Point
(1008-101)

 The Hard Easy
(01 October 2012)		 Reign of Gunters
(20 May 2013)
Reign of Gunters
(1008-102)		 Reign of Gunters
(08 October 2012)		 Ignition Point
(28 May 2013 - marathon)
I Remember You
(1008-103)		 I Remember You
(15 October 2012)		 The Lich
(28 May 2013 - marathon)
The Lich
(1008-104)		 The Lich
(22 October 2012)		 I Remember You
(25 July 2013 - unannounced
14 October 2013 - official)


Production numbers 125-128 originally went to a 44 minute special (TV movie). This special was eventually cancelled, and the numbers were never reassigned.

Season 5
Production Order US Broadcast Order UK Broadcast Order
Finn the Human
(1014-105)		 Finn the Human
(10? November 2012 - internet leak
12 November 2012 - official)		 Finn the Human
(07 October 2013)

Jake the Dog
(1014-106)

 Jake the Dog
(10? November 2012 - internet leak
12 November 2012 - official)		 Jake the Dog
(07 October 2013)
Five More Short Graybles
(1014-107)		 Five More Short Graybles
(19 November 2012)		 Five More Short Graybles
(14 October 2013)
Up a Tree
(1014-108)		 Up a Tree
(25? November 2012 - internet leak
26 November 2012 - official)		 Up A Tree
(21 October 2013)

All the Little People
(1014-109)

 All the Little People
(03 December 2012)		 All The Little People
(21 October 2013)
Bad Little Boy
(1014-110)		 Jake the Dad
(07 January 2013)		 Jake the Dad
(28 October 2013 - marathon)
Jake the Dad
(1014-111)		 Davey
(14 January 2013)		 Davey
(28 October 2013 - marathon)
Davey
(1014-112)		 Mystery Dungeon
(21 January 2013)		 Bad Little Boy
(09 November 2013 - marathon)
Mystery Dungeon
(1014-113)		 All Your Fault
(28 January 2013)		 Mystery Dungeon
(18 November 2013)
Little Dude
(1014-114)		 Little Dude
(04 February 2013)		 Vault of Bones
(25 November 2013)
All Your Fault
(1014-115)		 Bad Little Boy
(between 10 and 17 February 2013 - internet leak
18 February 2013 - official)		 Little Dude
(03 February 2014)
Vault of Bones
(1014-116)		 Vault of Bones
(25 February 2013)		 The Great Bird Man
(10 February 2014)
The Great Bird Man
(1014-117)		 The Great Bird Man
(04 March 2013)		 Simon and Marcy
(17 February 2014? - marathon)
Simon and Marcy
(1014-118)		 Simon and Marcy
(23? March 2013 - internet leak
25 March 2013 - official)		 Puhoy
(03 March 2014)

Puhoy
(1014-119)

 A Glitch is a Glitch
(28 March 2013 - internet leak
01 April 2013 - official)		 A Glitch is a Glitch
(10 March 2014)
A Glitch is a Glitch
(1014-120)		 Puhoy
(08 April 2013)		 One Last Job
(17 March 2014)
One Last Job
(1014-121)		 BMO Lost
(15 April 2013)		 Princess Potluck
(07 April 2014)
Princess Potluck
(1014-122)		 Princess Potluck
(22 April 2013)		 Shh!
(14 April 2014)
BMO Lost
(1014-123)		 James Baxter the Horse
(06 May 2013)		 The Suitor
(21 April 2014)
James Baxter the Horse
(1014-124)		 Shh!
(13 May 2013)		 The Party's Over, Isla de Senorita
(28 April 2014)
Shh!
(1014-129)		 The Suitor
(20 May 2013)		 Another Five More Short Graybles
(12 May 2014)
The Suitor
(1014-130)		 The Party's Over, Isla de Senorita
(27 May 2013)		 Candy Streets
(19 May 2014)
The Party's Over, Isla de Senorita
(1014-131)		 One Last Job
(06 May 2013 - Canada
10 June 2013 - US)		 Wizards Only, Fools
(26 May 2014 - marathon)
Another Five More Short Graybles
(1014-132)		 Another Five More Short Graybles
(17 June 2013)		 Jake Suit
(08 September 2014)
Candy Streets
(1014-133)		 Candy Streets
(24 June 2013)		 Be More
(08 September 2014)
Wizards Only, Fools
(1014-134)		 Wizards Only, Fools
(01 July 2013)		 Sky Witch
(15 September 2014)
Jake Suit
(1014-135)		 Jake Suit
(15 July 2013)		 Time Sandwich
(22 September 2014)
Be More
(1014-136)		 Be More
(22 July 2013)		 Too Old
(29 September 2014)
Frost and Fire
(1014-137)		 Sky Witch
(29 July 2013)		 The Vault
(06 October 2014)
Sky Witch
(1014-138)		 Frost and Fire
(05 August 2013)		 Love Games
(06 October 2014)
Time Sandwich
(1014-139)		 Too Old
(12 August 2013)		 Box Prince
(13 October 2014)
Too Old
(1014-140)		 Earth and Water
(02 September 2013)		 Dungeon Train
(20 October 2014)
Earth and Water
(1014-141)		 Time Sandwich
(09 September 2013)		 Red Starved
(27 October 2014 - marathon)
The Vault
(1014-142)		 The Vault
(16 September 2013)		 We Fixed A Truck
(27 October 2014 - marathon)
Love Games
(1014-143)		 Love Games
(23 September 2013)		 Apple Wedding
(03 November 2014)
Dungeon Train
(1014-144)		 Dungeon Train
(30 September 2013)		 Play Date
(10 November 2014)
Box Prince
(1014-145)		 Box Prince
(07 October 2013)		 The Pit
(17 November 2014)
Red Starved
(1014-146)		 Red Starved
(14 October 2013)		 Frost and Fire
(22 November 2014 - marathon)
We Fixed a Truck
(1014-147)		 We Fixed a Truck
(21 October 2013)		 Earth and Water
(22 November 2014 - marathon)
Apple Wedding
(1014-148)		 Play Date
(04 November 2013)		 James
(24 November 2014)
Play Date
(1014-149)		 The Pit
(18 November 2013)		 Lemonhope part 1
(17 February 2015 - marathon)
The Pit
(1014-150)		 James
(25 November 2013)		 Lemonhope part 2
(17 February 2015 - marathon)
James
(1014-151)		 Root Beer Guy
(02 December 2013)		 Root Beer Guy
(02 March 2015)
Lemonhope part 1
(1014-152)		 Apple Wedding
(13 January 2014)		 Blade of Grass
(03 March 2015)
Root Beer Guy
(1014-153)		 Blade of Grass
(20 January 2014)		 Rattleballs
(04 March 2015)
Blade of Grass
(1014-154)		 Rattleballs
(27 January 2014)		 The Red Throne
(05 March 2015)
Betty
(1014-155)		 The Red Throne
(10 February 2014)		 Betty
(06 March 2015)
Rattleballs
(1014-156)		 Betty
(24 February 2014)		 Billy's Bucket List
(09 March 2015)
Lemonhope part 2
(1014-157)		 Bad Timing
(03 March 2014)		 Bad Timing
(16 March 2015)
The Red Throne
(1014-158)		 Lemonhope part 1
(10 March 2014)
Billy's Bucket List
(1014-159)		 Lemonhope part 2
(10 March 2014)
Bad Timing
(1014-160)		 Billy's Bucket List
(17 March 2014)


Production number 1025-204 is assigned to the "Graybles Allsorts" shorts; those never aired in the UK, so they're not listed here.
"Hot Diggity Doom"/"The Comet" reran as normal until being pulled in mid 2018, for no apparent reason.

Season 6
Production Order US Broadcast Order UK Broadcast Order
Food Chain
(1025-161)		 Wake Up
(21 April 2014)		 James II
(23 March 2015)
Sad Face
(1025-162)		 Escape from the Citadel
(21 April 2014)		 Princess Day
(18 April 2015 - marathon)
Escape from the Citadel
(1025-163)

James II
(28 April 2014)

 Something Big
(18 April 2015 - marathon)
James II
(1025-164)		 The Tower
(05 May 2014)		 Sad Face
(20 April 2015)

Breezy
(1025-165)

 Sad Face
(12 May 2014)		 The Prince Who Wanted Everything
(20 April 2015)
Wake Up
(1025-166)		 Breezy
(05 June 2014)		 Furniture and Meat
(27 April 2015)
The Prince Who Wanted Everything
(1025-167)		 Food Chain
(12 June 2014)		 Food Chain
(27 April 2015)
The Tower
(1025-168)		 Furniture and Meat
(19 June 2014)		 Little Brother
(04 May 2015)

Princess Day
(1025-169)

 The Prince Who Wanted Everything
(26 June 2014)		 Ocarina
(04 May 2015)
Something Big
(1025-170)		 Something Big
(03 July 2014)		 Thanks For The Crabapples, Giuseppe!
(11 May 2015)

Furniture and Meat
(1025-171)

 Little Brother
(10 July 2014)		 Nemesis
(18 May 2015)
Little Brother
(1025-172)		 Ocarina
(17 July 2014)		 Joshua and Margaret Investigations
(29 May 2015 - marathon)
Ocarina
(1025-173)		 Thanks for the Crabapples, Giuseppe!
(24 July 2014)		 Jake the Brick
(29 May 2015 - marathon)
Thanks for the Crabapples, Giuseppe!
(1025-174)

Princess Day
(29 July 2014 - DVD
31 July 2014 - TV)

 Astral Plane
(25 July 2015 - marathon)
Nemesis
(1025-175)		 Nemesis
(07 August 2014)		 Ghost Fly
(29 August 2015 - marathon)
Joshua and Margaret Investigations
(1025-176)		 Joshua and Margaret Investigations
(14 August 2014)		 Gold Stars
(14 September 2015)
Jake the Brick
(1025-177)		 Ghost Fly
(28 October 2014)		 Evergreen
(15 September 2015)
Evergreen
(1025-178)		 Everything's Jake
(24 November 2014)		 Is That You?
(16 September 2015)
Gold Stars
(1025-179)		 Is That You?
(25 November 2014)		 Everything's Jake
(17 September 2015)
Astral Plane
(1025-180)		 Jake the Brick
(26 November 2014)		 The Visitor
(18 September 2015)

Ghost Fly
(1025-181)

Dentist
(28 November 2014)

 The Cooler
(21 September 2015)
Is That You?
(1025-182)		 The Cooler
(04 December 2014)		 The Mountain
(22 September 2015)
The Visitor
(1025-183)		 The Pajama War
(08 January 2015)		 The Pajama War
(23 September 2015)
Everything's Jake
(1025-184)		 Evergreen
(around 10 November 2014 - Brazil
15 January 2014 - US)		 Dentist
(24 September 2015)
Dark Purple
(1025-185)

Astral Plane
(around 25 December 2014 - Brazil
22 January 2015 - US)

 Dark Purple
(25 September 2015)

The Cooler
(1025-186)

 Gold Stars
(29 January 2015)		 The Diary
(28 October 2015 - marathon)
The Mountain
(1025-187)		 The Visitor
(around 03 February 2015 - Korea
05 February 2015 - US)		 Walnuts and Rain
(28 October 2015 - marathon)
Dentist
(1025-188)		 The Mountain
(12 February 2015)		 Friends Forever
(02 November 2015)
The Pajama War
(1025-189)		 Dark Purple
(19 February 2015)		 Be Sweet
(07 November 2015 - marathon)
The Diary
(1025-190)		 The Diary
(26 February 2015)		 Jermaine
(09 November 2015)

Friends Forever
(1025-191)

 Walnuts and Rain
(05 March 2015)		 Chips and Ice Cream
(16 November 2015)

Jermaine
(1025-192)

 Friends Forever
(18 March 2015 - Australia/NZ
16 April 2015 - US)		 Graybles 1000+
(17 November 2015)
Walnuts and Rain
(1025-193)		 Jermaine
(16 March 2015 - Australia/NZ
13 April 2015 - Latin America
23 April 2015 - US)		 Hoots
(18 November 2015)
Chips and Ice Cream
(1025-194)		 Chips and Ice Cream
(30 April 2015)		 You Forgot Your Floaties
(19 November 2015)

Graybles 1000+
(1025-195)

 Graybles 1000+
(07 May 2015)		 Orgalorg
(20 November 2015)
Hoots
(1025-196)		 Hoots
(14 May 2015)		 On the Lam
(23 November 2015)
You Forgot Your Floaties
(1025-197)		 Water Park Prank
(02 May 2015 - online
21 May 2015 - TV)		 Hot Diggity Doom
(16 February 2016 - marathon)
Orgalorg
(1025-198)		 You Forgot Your Floaties
(01 June 2015)		 The Comet
(16 February 2016 - marathon)
Be Sweet
(1025-199)		 Be Sweet
(02 June 2015)		 See season 7 list for "Water Park Prank"

The Comet
(1025-200)

 Orgalorg
(03 June 2015)
On the Lam
(1025-201)		 On the Lam
(04 June 2015)
Water Park Prank
(1025-202)		 Hot Diggity Doom
(05 June 2015)
Hot Diggity Doom
(1025-203)		 The Comet
(05 June 2015)


Production number 1034-229 is assigned to the "Frog Seasons" shorts; those never aired in the UK, so they're not listed here.
"Water Park Prank" is heldover from season 6 for unknown reasons (my best guess is that it has something to do with the troubled production of this ep).
Many of these episodes leaked online several days before their intended airdate, due to a security hole in CN's servers that they took forever to get round to fixing. I didn't bother to list these since this affected pretty much half of the season.

Season 7
Production Order US Broadcast Order UK Broadcast Order
Bad Jubies
(1034-205)		 Bonnie and Neddy
(02 November 2015)		 Stakes pt 1: Marceline the Vampire Queen
(14 March 2016)
Cherry Cream Soda
(1034-206)		 Varmints
(03 November 2015)		 Stakes pt 2: Everything Stays
(14 March 2016)
Football
(1034-207)

Cherry Cream Soda
(04 November 2015)

 Stakes pt 3: Vamps About
(15 March 2016)
Varmints
(1034-208)		 Mama Said
(05 November 2015)		 Stakes pt 4: The Empress Eyes
(15 March 2016)
Bonnie and Neddy
(1034-209)		 Football
(06 November 2015)		 Stakes pt 5: May I Come In
(16 March 2016)
Angel Face
(1034-210)		 Stakes pt 1: Marceline the Vampire Queen
(16 November 2015)		 Stakes pt 6: Take Her Back
(16 March 2016)
President Porpoise is Missing!
(1034-211)		 Stakes pt 2: Everything Stays
(16 November 2015)		 Stakes pt 7: Checkmate
(17 March 2016)
Stakes pt 1: Marceline the Vampire Queen
(1034-212)		 Stakes pt 3: Vamps About
(17 November 2015)		 Stakes pt 8: The Dark Cloud
(17 March 2016)
Stakes pt 2: Everything Stays
(1034-213)		 Stakes pt 4: The Empress Eyes
(17 November 2015)		 Cherry Cream Soda
(11 April 2016)
Stakes pt 3: Vamps About
(1034-214)		 Stakes pt 5: May I Come In
(18 November 2015)		 Football
(18 April 2016)
Stakes pt 4: The Empress Eyes
(1034-215)		 Stakes pt 6: Take Her Back
(18 November 2015)		 Bonnie and Neddy
(25 April 2016)
Stakes pt 5: May I Come In
(1034-216)		 Stakes pt 7: Checkmate
(19 November 2015)		 Varmints
(02 May 2016)
Stakes pt 6: Take Her Back
(1034-217)		 Stakes pt 8: The Dark Cloud
(19 November 2015)		 Angel Face
(09 May 2016)
Mama Said
(1034-218)		 The More You Moe, The Moe You Know part 1
(03 December 2015)		 President Porpoise is Missing!
(16 May 2016)
Stakes pt 8: The Dark Cloud
(1034-219)		 The More You Moe, The Moe You Know part 2
(03 December 2015)		 Mama Said
(23 May 2016)
Blank-Eyed Girl
(1034-220)		 Summer Showers
(07 January 2016)		 Bad Jubies
(30 May 2016 - marathon)
King's Ransom
(1034-221)

Angel Face
(11 January 2016)

 Blank-Eyed Girl
(30 May 2016 - marathon)
Stakes pt 7: Checkmate
(1034-222)		 President Porpoise is Missing!
(12 January 2016)		 King's Ransom
(30 July 2016 - marathon)
Summer Showers
(1034-223)

Blank-Eyed Girl
(13 January 2016)

 Summer Showers
(03 August 2016 - marathon)
The More You Moe, The Moe You Know part 1
(1034-224)

Bad Jubies
(14 January 2016)

 Scamps
(05 September 2016)
Scamps
(1034-225)		 King's Ransom
(15 January 2016)		 Crossover
(12 September 2016)
Crossover
(1034-226)		 Scamps
(21 January 2016)		 The Hall of Egress
(19 September 2016)
The Hall of Egress
(1034-227)		 Crossover
(28 January 2016)		 Don't Look
(20 September 2016)
The More You Moe, The Moe You Know part 2
(1034-228)		 The Hall of Egress
(05 March 2016)		 Flute Spell
(21 September 2016)
Don't Look
(1034-230)		 Flute Spell
(12 March 2016)		 Lady Rainicorn of the Crystal Dimension
(22 September 2016)
Flute Spell
(1034-231)		 The Thin Yellow Line
(19 March 2016)		 The Thin Yellow Line
(23 September 2016)
Lady Rainicorn of the Crystal Dimension
(1034-232)		 Broke His Crown
(26 March 2016)		 Broke His Crown
(26 September 2016)
The Thin Yellow Line
(1034-233)		 Don't Look
(02 April 2016)		 Beyond the Grotto
(26 October 2016 - marathon)
Broke His Crown
(1034-234)

Beyond the Grotto
(09 April 2016)

 I Am A Sword
(26 October 2016 - marathon)
Beyond the Grotto
(1034-235)		 Lady Rainicorn of the Crystal Dimension
(16 April 2016)		 Water Park Prank
(26 October 2016 - marathon)
I Am A Sword
(1034-236)		 I Am A Sword
(23 April 2016)		 Five Short Tables
(26 October 2016 - marathon)
Five Short Tables
(1034-237)

Bun Bun
(05 May 2016)

 Daddy-Daughter Card Wars
(06 February 2017)
Daddy-Daughter Card Wars
(1034-238)		 Normal Man
(12 May 2016)		 The Music Hole
(07 February 2017)
The Music Hole
(1034-239)		 Elemental
(19 May 2016)		 Bun Bun
(08 February 2017)
Bun Bun
(1034-240)		 Five Short Tables
(26 May 2016)		 Normal Man
(09 February 2017)
Normal Man
(1034-241)		 The Music Hole
(23 June 2016)		 Elemental
(10 February 2017)
Elemental
(1034-242)		 Daddy-Daughter Card Wars
(07 July 2016)		 Preboot
(03 July 2017)
Preboot
(1034-243)		 Preboot
(October 2016 - London/New York Comic Con
October/November 2016 - Italy, South Africa, others?
19 November 2016 - US)		 Reboot
(03 July 2017)
Reboot
(1034-244)		 Reboot
(19 November 2016)		 See season 8 for "The More You Moe, The Moe You Know"


"The More You Moe, The Moe You Know" was heldover from season 7, probably because it's a half-hour special and CN UK tends to hold onto those until they can fit them into their schedule (this also means half-hour specials don't tend to rerun very often over here, either), which just happened to be at the start of season 8.

Season 8
Production Order US Broadcast Order UK Broadcast Order
Wheels
(1042-245)

Two Swords
(23 January 2017)

 Wheels
(04 July 2017)
High Strangeness
(1042-246)		 Do No Harm
(23 January 2017)		 High Strangeness
(05 July 2017)
Horse and Ball
(1042-247)		 Wheels
(24 January 2017)		 Horse and Ball
(06 July 2017)

Two Swords
(1042-248)

 High Strangeness
(25 January 2017)		 Two Swords
(07 July 2017)
Do No Harm
(1042-249)		 Horse and Ball
(26 January 2017)		 The More You Moe, The Moe You Know part 1
(10 July 2017)
Jelly Beans Have Power
(1042-250)		 Jelly Beans Have Power
(27 January 2017)		 The More You Moe, The Moe You Know part 2
(10 July 2017)
Islands pt 1: The Invitation
(1042-251)

Islands pt 1: The Invitation
(24 January 2017 - DVD/iTunes/etc
30 January 2017 - TV)

 Do No Harm
(11 July 2017)
Islands pt 2: Whipple the Happy Dragon
(1042-252)		 Islands pt 2: Whipple the Happy Dragon
(24 January 2017 - DVD/iTunes/etc
30 January 2017 - TV)		 Jelly Beans Have Power
(12 July 2017)
Islands pt 3: Mysterious Island
(1042-253)		 Islands pt 3: Mysterious Island
(24 January 2017 - DVD/iTunes/etc
31 January 2017 - TV)		 Islands pt 1: The Invitation
(17 July 2017)
Islands pt 4: Imaginary Resources
(1042-254)		 Islands pt 4: Imaginary Resources
(24 January 2017 - DVD/iTunes/etc
31 January 2017 - TV)		 Islands pt 2: Whipple the Happy Dragon
(17 July 2017)
Islands pt 5: Hide and Seek
(1042-255)		 Islands pt 5: Hide and Seek
(24 January 2017 - DVD/iTunes/etc
01 February 2017 - TV)		 Islands pt 3: Mysterious Island
(18 July 2017)

Islands pt 6: Min and Marty
(1042-256)

 Islands pt 6: Min and Marty
(24 January 2017 - DVD/iTunes/etc
01 February 2017 - TV)		 Islands pt 4: Imaginary Resources
(18 July 2017)
Islands pt 7: Helpers
(1042-257)		 Islands pt 7: Helpers
(24 January 2017 - DVD/iTunes/etc
02 February 2017 - TV)		 Islands pt 5: Hide and Seek
(19 July 2017)
Islands pt 8: The Light Cloud
(1042-258)		 Islands pt 8: The Light Cloud
(24 January 2017 - DVD/iTunes/etc
02 February 2017 - TV)		 Islands pt 6: Min and Marty
(19 July 2017)
Orb
(1042-259)

Orb
(10-12 March 2017 - Australia live event
14 April 2017? - CN app
21 April 2017 - TV)

 Islands pt 7: Helpers
(20 July 2017)
Elements pt 1: Skyhooks
(1042-260)		 Elements pt 1: Skyhooks
(17 April 2017 - iTunes
24 April 2017 - TV)		 Islands pt 8: The Light Cloud
(20 July 2017)

Elements pt 2: Bespoken For
(1042-261)

 Elements pt 2: Bespoken For
(17 April 2017 - iTunes
24 April 2017 - TV)		 Elements pt 1: Skyhooks
(04 December 2017)
Elements pt 3: Winter Light
(1042-262)		 Elements pt 3: Winter Light
(17 April 2017 - iTunes
25 April 2017 - TV)		 Elements pt 2: Bespoken For
(04 December 2017)

Elements pt 4: Cloudy
(1042-263)

 Elements pt 4: Cloudy
(17 April 2017 - iTunes
25 April 2017 - TV)		 Elements pt 3: Winter Light
(05 December 2017)
Elements pt 5: Slime Central
(1042-264)		 Elements pt 5: Slime Central
(17 April 2017 - iTunes
26 April 2017 - TV)		 Elements pt 4: Cloudy
(05 December 2017)
Elements pt 6: Happy Warrior
(1042-265)		 Elements pt 6: Happy Warrior
(17 April 2017 - iTunes
26 April 2017 - TV)		 Elements pt 5: Slime Central
(06 December 2017)

Elements pt 7: Hero Heart
(1042-266)

 Elements pt 7: Hero Heart
(17 April 2017 - iTunes
27 April 2017 - TV)		 Elements pt 6: Happy Warrior
(06 December 2017)
Elements pt 8: Skyhooks II
(1042-267)		 Elements pt 8: Skyhooks II
(17 April 2017 - iTunes
27 April 2017 - TV)		 Elements pt 7: Hero Heart
(07 December 2017)

Abstract
(1042-268)

 Abstract
(14 July 2017 - CN app
17 July 2017 - TV)		 Elements pt 8: Skyhooks II
(07 December 2017)
Fionna and Cake and Fionna
(1042-269)		 Ketchup
(14 July 2017 - CN app
18 July 2017 - TV)		 Abstract
(30 March 2018)
Whispers
(1042-270)

Fionna and Cake and Fionna
(14 July 2017 - CN app
19 July 2017 - TV)

 Whispers
(30 March 2018)
Ketchup
(1042-271)		 Whispers
(14 July 2017 - CN app
20 July 2017 - TV)		 Fionna and Cake and Fionna
(06 April 2018)
Three Buckets
(1042-272)		 Three Buckets
(14 July 2017 - CN app
21 July 2017 - TV)		 Ketchup
(13 April 2018)
Three Buckets
(20 April 2018)
Orb
(27 April 2018)


"Diamonds and Lemons" is technically not part of any season; it's a standalone special/"bonus episode" produced after work on season 9 had wrapped up. However, it ended up airing as part of season 9, so I'm listing it here anyway.
The eps in this season seem to have aired in four-episode blocks pretty much everywhere; outside of the US (including the UK), they were marketed with the following titles: "Back Then" ("The Wild Hunt" to "Bonnibel Bubblegum"), "Nowadays" ("Seventeen" to "The First Investigation"), "Tomorrow" ("Blenanas" to "Gumbaldia") and "Come Along With Me" (...."Come Along With Me"). CN US didn't use these titles, but they did market the finale as "The Ultimate Adventure"; as far as I know, no other countries used this title.

Season 9
Production Order US Broadcast Order UK Broadcast Order

Always BMO Closing
(1054-273)

 The Wild Hunt
(17 September 2017)		 Always BMO Closing
(04 May 2018)
Bonnibel Bubblegum
(1054-274)		 Always BMO Closing
(17 September 2017)		 Bonnibel Bubblegum
(04 May 2018)
The Wild Hunt
(1054-275)		 Son of Rap Bear
(17 September 2017)		 The Wild Hunt
(04 May 2018)

Son of Rap Bear
(1054-276)

 Bonnibel Bubblegum
(17 September 2017)		 Son of Rap Bear
(04 May 2018)
Ring of Fire
(1054-277)		 Seventeen
(17 December 2017)		 Ring of Fire
(08 December 2018)
Marcy and Hunson
(1054-278)		 Ring of Fire
(17 December 2017)		 Marcy and Hunson
(08 December 2018)
The First Investigations
(1054-279)		 Marcy and Hunson
(17 December 2017)		 The First Investigation
(08 December 2018)
Blenanas
(1054-280)		 The First Investigation
(17 December 2017)		 Seventeen
(08 December 2018)
Seventeen
(1054-281)		 Blenanas
(18 Marcy 2018)		 Diamonds and Lemons
(08 December 2018)
Temple of Mars
(1054-282)		 Jake the Starchild
(18 Marcy 2018)		 Blenanas
(15 December 2018)
Jake the Starchild
(1054-283)		 Temple of Mars
(18 Marcy 2018)		 Temple of Mars
(15 December 2018)
Gumbaldia
(1054-284)		 Gumbaldia
(18 Marcy 2018)		 Jake the Starchild
(15 December 2018)
Come Along With Me
(1054-285 / 1054-286 / 1054-287 / 1054-288)		 Diamonds and Lemons
(20 July 2018)		 Gumbaldia
(15 December 2018)
Diamonds and Lemons
(???-289)		 Come Along With Me
(03 September 2018)		 Come Along With Me
(22 December 2018)


In the US, the four Distant Lands eps were exclusively streamed on HBO Max. However, in the UK (and other countries where HBO Max isn't available), they received TV airings on Cartoon Network, like the original show.
"Together Again" was originally intended to be released as the fourth episode, however, delays caused by the COVID-19 pandemic forced them to release the episodes in production order instead.

Adventure Time: Distant Lands
Production Order US Broadcast Order UK Broadcast Order

BMO
(???)

 BMO
(25 June 2020)		 BMO
(21 November 2020)
Obsidian
(???)		 Obsidian
(19 November 2020)		 Obsidian
(17 April 2021)
Together Again
(???)		 Together Again
(20 May 2021)		 Together Again
(14 August 2021)

Wizard City
(???)

 Wizard City
(02 September 2021)		 Wizard City
(05 February 2022)

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