Which TV show do you watch again and again?

The sopranos. Easily one of the best shows ever made. I catch new things every time I watch. David Chase is genius.
MASH. Just comforting background noise from my childhood really.
OG Simpsons. Seasons 3 to tenish. Some of the best writing ever.
Futurama, preferring the older seasons, but the later ones are still good.
I've recently started watching Hill Street Blues. Most of which is available on you tube if anyone's interested. Really been enjoying it.

Lemmy is really a different type of audience.
This question each and every time had The West Wing as top rated answer on the other platform consistently, but here even Taskmaster gets 8 votes.
The West Wing was required medicine to get through 45. For 47, I’m hearing good things about 86.

Stargate SG1 and Atlantis
Supernatural
Person of Interest
The mentalist
Eureka
Psych
House
Bones
I usually have one of these on in the background whenever I’m coding. I can’t code in silence and if I have music I end up singing and can’t concentrate.

Futurama and avatar are endlessly rewatchable imo

Comedy:
The Young Ones
Red Dwarf
Bottom
The Office (UK)
Coupling
Peep Show
Little Britain
Roseanne
3rd Rock From the Sun
Futurama
30 Rock
Arrested Development
Broad City
Joe Pera Talks with You
Science Fiction:
Star Trek: TNG
Firefly
The Expanse
Battlestar Galactica (2004)
Travellers
Real Humans/Äkta Människor
Foundation
Drama:
Six Feet Under
Breaking Bad
Anime:
Golden Boy
Dutch:
Rembo & Rembo
Zaai
Dunya & Desie
Jiskefet
All Stars

Futurama.
I put it on to fall asleep. I'm out before the episode ends. A downside is that I've seen the start of so many episodes, but rarely the end.
- lol I'm the same for the 90s Berserk series, it's given me a strange perspective on it

mash

- Tom Baker era of Doctor Who. So good.
- the most accurate depiction of corporate IT support that has ever been put to screen

It's Always Sunny In Philadelphia
- Absolutely!

90's Trek is my go too comfort food. Especially TNG and Voyager. Less so Enterprise. And I never got into DS9 at all (fight me). When I'm looking for a random episode to watch in the background, it's usually one of those.
Comedy-wise, Community, Night Court (the original), The IT Crowd, The Office, Futurama, all fill the same role as Star Trek above.
Less often, but still on a pretty regular rotation, 80's shows like Quantum Leap, Simon & Simon, MacGuyver, Knight Rider. Just dumb shows where they have a one hour adventure and then have a new one the next week; where you don't have to stress about watching every damn episode because the entire season is one big plotline.
- In Trek, there's ToS and TNG. After that, meh. They became soap operas, full on. ToS was Greek Morality Plays, and TNG followed that, though had it's issues too.
  Great closing bullet point.

Dilbert
- Lol I forgot all about this one! Was a good'un

Community never ceases to cheer me up

I rewatch a lot of things that I enjoy but in recent years, shows that I've seen multiple times the most for various reasons like watching again with someone else are: iZombie, Doom Patrol and Fringe.

Avatar, Korra, Firefly.
- Yes
  Yes
  And
  Yes

TNG, Voyager and DS9.
- Gotta finish off with Enterprise, it has been a long road.
  
  Underrated take. The true end of the TNG era of shows.
  (not era of time, obviously)
  
  Binging it right now. The NX is probably my favorite trek ship design. I loved the less polished design.

King of the Hill
Haunting of the Hill House
Haunting of Bly Manor
Batman (Animated Series)
IT Crowd

Firefly
Yeah I cry a lot, what of it?

Pen15

Community, Bob's Burger, Firefly, Avatar the Last Airbender
- Bob's burgers is great!
- +1 for Firefly!
- Haven't watched Bob's Burgers. Watch all the others (plus LoK) every year, so I'll try it!
  
  It's pretty cosy and wacky at times. If you like Community you'd definitely like it as well

SG1, ALL 3 series. some law and order and house. 2000s the golden era of shows. and also TREK shows, not the crappy nutrek(too much kurtzman, jj abrams meddling). ISAIP (S1-12 only), 13+ seasons were just terrible and ionly fan service with cringey skits. the animated nutrek is much better than the 3 live series.
SPN 1-5, by kripke, 6+ and they made to fanfiction and made it homoerotic because the fans are fantasizing about the characthers.
- IASIP... The final episode of season 16 is worth a watch.
  
  13+ clips, and other people defending it just left a bad taste, plus the creators, are all sketchy people now.

I’m dating myself:
Hogans Heroes
Mission: Impossible (the TV series from the 60’s & 70’s, not the movie franchise that’s just a Tom Cruise adrenaline fantasy)
- Hello fellow ancient one, your taste in series is magnificent
- Lol, yep. Thanks for the reminders. I recently got all the Get Smart episodes from my library.

Community, BoJack Horseman, Adventure Time.
- I'm not sure I could go through BoJack a second time.
  Unless it was like, Chicago-style.
- Deleted, posted under another comment by mistake rather than under the post itself.

Aqua Teen Hunger Force
Harvey Birdman: Attorney at Law
Arrested Development
Childrens Hospital
Futurama
- Haven't seen Harvey in forever, haha. Thanks for the reminder
  
  "Didja.... Didja get that thing I sent ya??"

Band of Brothers once per year, without fail. Curahee!
- Oh, man. Fantastic show, but I find it really hard to watch because I know it's so damn accurate.
  I admire your commitment, it should be in high school history classes. It shows better than anything I've ever watched, how hellish it was for everyone.
  The D-day beaches, holy hell.
  
  They did a great job of being even handed, and the final episode where the general is addressing his men was so well done, it's very moving.
- The line I look forward to the most is: “We’re paratroopers lieutenant. We’re supposed to be surrounded.”
- 3 miles up; 3 miles down.
  An annual audiobook listen for me is Winters' memoirs, Beyond Band of Brothers. Helps keep me grounded.
- I do this with The Pacific too. Masters of the Air was also really good

Adventure time, courage the cowardly dog

None.

Usually, it's Parks and Rec, The Office, Scrubs, and IASIP. But I have gotten sick of those after watching most of them a dozen plus times, so now it's Community, Zoeys Playlist, and Cougar Town until I get sick of them too
- Have you seen 30 Rock? And Schitts Creek? Would fit in your lists.
  
  I never liked 30 Rock most of the cast I can't stand. But as a Canadian Shitts Creek is required watching, just not one I found myself wanting to rewatch (the ending with Ted and Alexis really pissed me off)

Babylon 5

The Andy Griffith Show. Wholesome, and ALWAYS funny, at least until Don Knotts left the cast. I just watched an Earnest T Bass episode and an Otis the Drunk episode over the weekend.
- My dad's bird could sing the theme when I was really small

Arrested Development
\ Archer

The expanse, altered carbon, billions, mr robot.
- Yeah I've probably watched the Expanse 4 times. I don't know if I'd rather watch it again or read it again.
- Altered Carbon is great.
  
  It's just too bad they only made one season of that show. Netflix probably would have ruined a second season anyway by slashing the budget and miss casting the lead.

The Office.
I throw it on in the background constantly.
- Surprised how low this is. I was certain it would be the top pick.

Gravity Fall and Avatar the Last Airbender.
- Hell yes to both!

- feds can’t meme
- What's that from? She looks familiar.
  Never mind, I zoomed in and could see it's Lucy in Xena
- The most divine answer

The Wire and Luther. Can you tell I love Idris Elba?

Futurama, Las Vegas, 30Rock.

The Good Place

Star Trek. Specifically TNG and DS9.
- TREK; enterprise, voyager, tng, and DS9. Enterprise was supposed to go on much longer, but LES MOONVES hated the series and wanted nothing to do with it. nutrek; STD, PICARD, SNW were not good at all.

Red Dwarf.

30 Rock
It's Always Sunny...
BoJack Horseman
Arrested Development
Schitts Creek
Brooklyn 99
- A perfect collection

Trailer Park Boys. I can never get enough of the chaos

The Wire
- Shiiiiiiiiiiit

Star Trek: TNG, VOY, DS9

NCIS, Bones, Castle

Not really "again and again" but the only show I've watched twice is The Good Place. Maybe I should go for a third time, it was really good.

I watch Friends when I just want to laugh. When I want more serious stuff I watch HIMYM. God I love those shows.

The Simpsons

Wonderfalls

Any of the Star Treks, the West Wing (because I love fantasy), Firefly, IT Crowd, Buffy the Vampire Slayer, Garth Marenghi's Dark Place....
- A person of culture. Though I've never watched the West Wing I approve of the rest.
  
  West Wing has some fantastic acting from some really talented people. It's definitely a guilty pleasure in that it paints a (very) idealistic portrait of modern politics and life in the White House as only Hollywood can provide. One can dream, right? :D

It's always sunny in Philadelphia, Seinfeld, Community, How I met your mother, Psych, Classic Trek (TNG,DS9,VOY,ENT), Firefly, Bones.
Mostly just as background noise when doing stuff. Doesn't absorb me like a podcast or audio book might since it's old information and doesn't amp me up like music does.

Taskmaster
Uk, new Zealand, Australian, on repeat forever and ever. Even throw some of the Scandinavian versions on when I'm feeling focused enough for subtitles
- This 100%. Even the kids version is good.

Avatar: The Last Airbender.
- The wife and I watch this followed by LoK every year. Always a treat!

White Collar
Stargate SG1
Stargate Atlantis

Uk here. Peep Show, Black adder, Dad's Army and The Sopranos.

Not so much any more, but I used to watch Monty Python's Flying Circus any time it was on.