Family Ties or Silver Spoons (I know, old school!). But fwiw, there aren't so many great theme songs from more recent shows since the theme song seems to have disappeared or been shrunken down to almost nothing

Duck Tales!!!
Might solve a Mystery, or rewrite HISTORY!!!
Duck tales a-woohooo!
tales of derring-do, bad and good luck tales
a-woohoo!
D-d-d-danger lurks behind you
TH-there's a stranger out to find you
What to do just grab onto some
DUCK TALES
a-WOOOHOOOO

Fresh Prince of Bel-Air is a classic. And I like Gilligan's Island.

The Office (US) and Arrested Development

The Office (UK) and the Office (US) and The Simpsons.

Duck Tales or French Prince of Bel Air. . .what other theme song do people still randomly burst out rapping as much as Fresh Prince?

the office one :)

Yeah Fresh Prince! I know all the words to Firefly too.

Ooh, and Friends!

the flinstones one
yaba daba dooo

The Fresh Prince of Belair, The Big Bang Theory, Arrested Development, Roseanne and my all time favorite...The Office (US)...it's my ringtone!

THE OFFICE!!

friends

The Office, Psych, and Friends (Well, actually I just love the three claps)

Oh, and Three's Company

Oh, and also How I Met Your Mother!! lol

i love them all. I really like The Addams Family one! Du du dun click click du du dun click click

I've got some theme songs I like: HIMYM, Fresh Prince of Bel-Air and my most favorite must be I'll Be There For You, the Friends theme song =)

I really like the theme song to Mash, I like ti better in the movie

Big Bang Theory

I like monk,ncis,and the fresh prince of be-air

I like the Strange and Sherlock songs...and The Sarah Jane Adventures...and Primeval...and a whole bunch more that I can't think of right now. But the first two are my favorite.

OMG!! The Big Bang Theory, The Office (US), Friends, Two and a Half Men, Arrested Development, Dexter... Too many ^^ :P