TV shows that you've seen every episode of:

[strongbad]

Arrested Development (multiple run throughs)
Sienfeld
Scrubs ( )
The Simpsons (Well, I missed a few of the original ones, but I've seen over 95% of them)
Family Guy
Malcolm in the Middle
The Office
The Office

[russell]

Six Feet Under is the only one

It's likely that I've inadvertently seen like 95% of Family Guy though

[famy]

seinfeld
scrubs
the fresh prince of bel-air (all of them at least 5 times ;-;)
family matters
the steve harvey show
south park

idk spongebob

more i can't think of i might edit when i remember or see what others have posted 

[Pyrate]

The Simpsons and South Park

[Skylark]

Gilmore Girls, Grey's Anatomy

[Thyme]

Lost
Sarah Connor Chronicles
The Smurfs
Undergrads (only one season lol)
Clone High (only one season lol)
Downtown (only one season lol)

[l a c e y]

the hills. <3

[Meyer Lansky]

Lost
& The Wire.

[Skylark]

Lost
& The Wire.

Oh! I had forgotten Lost! And The Riches.

[Daphnia]

Best in bold.

Animanicas
Battlestar Galactica
Californication
Carnivale
Crusoe
Dexter
Family Guy
Firefly
Fringe
Heroes
House
Lost
Pushing Daisies
The Office
True Blood
Ugly Betty
Veronica Mars
Weeds

That's all I have on my computer. I probably have more on other drives.

[Bolivian Army]

I think only Firefly.

[guff]

firefly, heroes, and i think burn notice but i'm not entirely sure

[Wrench]

Lost
Fresh Prince
Cosby Show

[Sam]

I dunno if cartoons or anime count

FMA
Spongebob
Doug
Rugrats
Smurfs
Some really weird show with this ugly computer animated lighting super hero. I forget the name.
Death Note
Will and grace
Frasier
Sex in the City (but not the movie)
Friends
Drake and Josh (seriously)
The Suite Life of Zack and Cody
Lizzy McGuire
FLCL
Fresh Prince
Cosby Show
Gilmore Girls
I love Lucy
Everybody Loves Raymond (I'm pretty sure)
The Honeymooners
The Melancholy of Haruhi Suzumiya (i think taht's the name)
.Hack legends of the twilight (I think that's what it's called again)
I wish I could say pokemon but not the 2 most recent seasons.
Robot Chicken
The Boondocks (I think again)
Superjail (so far. there's only been like 5 episodes.)

I'm sure there are more but I can't think of any. :P I know there are more Nick at Night reruns that I've seen all of and can't remember. And also other old Disney and Nick shows I'm positive I've seen all of.

Few more:
Full House
That 70's Show (I think)
Lloyd in Space
Hey Arnold!
Clarissa Explains it all
Sabrina the teenage witch
Rocket Power


I think I win for watching the most shitty shows

[strongbad]

Ahh i forgot The Office please forgive me