[KCosmo]

Curb your enthusiasm and Seinfeld!

[TCalderbank]

House definitely has to be up there I think.

[LettersFromTheSky]

Friends, The Vampire Diaries, One Tree Hill, Grey's Anatomy are amongst mine. I can't choose a fifth.

[Mr Ben]

For me, there's a clear number 1, Community.

It's an absolutely fantastic show, the funniest ensemble comedy I've ever seen that incorporates some real emotional scenes beautifully. Seriously, if you've never seen it look the show up, the first season starts off a little slow since it's a very character driven show, but after a few episodes you'll be hooked.

[BolloTheGorilla]

1. Life on Mars
2. Breaking Bad
3. Sherlock
4. Doctor Who (classic series-not new!)
5. The Inbetweeners

Others which I considered and would shortly follow on a slightly longer list; Only Fools and Horses, Blackadder, The IT Crowd, Minder, Fawlty Towers, Ashes to Ashes.

[tonyhernandez]

1. House
2. Smallville
3. Family Guy
4. Life on Mars
5. Only Fools and Horses

[Killuminati1989]

(Original post by Chuck Norris)
So glad someone else out there loves Boston Legal

theres nothing like the misogyny of denny crane and suave of alan shore

[murpo]

Breaking bad, Dexter, Game of thrones, Simpsons - all have to be there!

[Hostile17]

#1 - Firefly
#2 - Buffy
#3 - Seinfeld
#4 - Simpsons
#5 - Northern Exposure

#1 miniseries: Band of Brothers

honorable mentions:
Curb Your Enthusiasm
House seasons 1 & 2 (after that it really went downhill)
LOST season 1 only (ditto above)
Millennium
X-Files seasons 1-6
Angel
Kids in the Hall

best low-budget show ever: LEXX

[Timor]

Too many to choose from
Had to do a top 10 in no particular order:
Friends, How i met your mother, two and a half men (sheen), inbetweeners, the o.c, entourage, game of thrones, suits, THE BIG BANG THEORY, scrubs

[ArtisticFlair]

1. Silent Witness
2. Miranda
3. Doctor Who
4. Ugly Betty
5. The Simpsons

(can't decide whether New Tricks should be on there too... oooh that's tricky)

Ah yes: also Fawlty Towers, Sherlock, The Inbetweeners, Friday Night Dinner (absolute legend)... how could I forget FRIENDS?!

[Super Cicero]

You people all really need to watch The Sopranos. Seriousy, it lives up to the hype - it is indisputably the greatest TV series of all time.

Personally I think:

1. The Sopranos
2. Game of Thrones (even though not as good as books)
3. Mad Men
4. Inbetweeners
5. Futurama

[Cypriots]

1) The Wire
2) Sopranos
3) Breaking Bad
4) Spartacus
5) Game of Thrones

[voldejoe]

1. Friends
2. The Big Bang Theory
3. Dexter
4. Modern Family
5. Miranda

I'm sure there are other great ones, but these are based on the ones I've seen.

[elixira]

Am I the only person who always thought Friends is boring as ****?

Dexter
House
Big Bang Theory because it's the only comedy I actually find funny/bearable
Skins
Sex and the City

There are loads of others, and lots that I want to get into, too.

[Kaiser7]

Breaking Bad
Dexter
Chuck
Sherlock
Arrested Development

In no particular order, and keeping in mind that I have not seen greats such as The Wire, The Sopranos, The Shield, Game of Thrones, and more, of course.

[musabjilani]

I wouldn't say the greatest of all time, but my favorites are:

1. Sherlock
2. Friends
3. House
4. The Big Bang Theory
5. Lie to Me (taught me a lot!) or Mad Men.

[NR09]

1. Friends
2. Only Fools and Horses
3. The Royle Family
4. ER
5. Scrubs

[LemonLizards]

1. Cheers
2. Seinfeld
3. Black Books
4. Futurama
5. Frasier

Curb your enthusiasm would just miss out.

[Shawy89]

1. Desperate Housewives
2. Family Guy
3. Scrubs
4. The Big Bang Theory
5. Friends

And honourable mentions go to How I Met Your Mother and Sienfeld.

Edit: Oh yeah, plus The Inbetweeners and Fawlty Towers! Just too many for a top 5!!