My favorites:
Fiction:
CSI
The West Wing
The Shield
News
The Daily Show
Entertainment
American Idol
My wife’s picks:
Buffy the Vampire Slayer
Angel
Comedy:
Friends
Simpsons
Scrubs
I used to like Law and order…but I have seen most of em now…
Is there anything really good out there I am missing? I have tivo and so I don’t browse or watch commercials anymore. Does anyone have any really good show recommendations?
24
The Shield
Curb Your Enthusiasm
I’ve really enjoyed “Penn and Teller’s Bullsh!t” as well.
Your wife had good taste! The only things I would stick to that is CSI (NOT Miami)
Southpark
John Doe
Alias
Stargate
My choices:
Gilmore Girls (my favorite show)
CSI
Will & Grace (you gotta love Karen)
Buffy the Vampire Slayer
The Shield
Angel
Everybody Loves Raymond
Spongebob Squarepants 
Just to list a few according to genre. Some aren’t even being shown on a regular time slots which is quite annoying.
Cartoon:
Dragonball Z
Spongebob Squarepants
Simpsons
Futurama
Reality:
Amazing Race
Survivor
Comedy:
Andy Richter
Everybody Loves Raymond
King of Queens
Scrubs
Malcolm in the Middle
Drama:
CSI
Sopranos
Late Night Talk:
Letterman
Conan
Gameshow:
Wheel of Fortune
Jeopardy!
Sports:
HOCKEY night in Canada!!!
Comedy:
Drama:
Late Night :
Cartoons :
Simpsons
Clone High (best new cartoon comedy out IMHO)
The Sheild
Junkyard Wars
Drama:
24
CSI (Las Vegas)
Boomtown
Third Watch
Without A Trace
Six Feet Under
Comedy:
Scrubs
Reality:
Survivor
Six Feet Under is at the top of my list, and is the only thing I make a point of watching. Other things I enjoy, but don’t have to see:
Letterman
South Park
Scrubs
Simpsons
King of the Hill
Law and Order
Sopranos
Sex and the City
Everybody Loves Raymond
The Daily Show
Drama:
24
ER
Comedy:
Friends
Scrubs
Crank Yankers
Cartoons:
Simpsons
King of the Hill
Reality:
Cops
Sports:
ABC/ESPN NFL coverage
Reruns:
Lexx
Babylon 5
Star Trek: TOS
Real TV
E! True Hollywood Story
The best show ever
Reruns:
MST3K
There’s some really good shows on here, but I’m surprised nobody’s mentioned Frontline or Nova. For my money those are hands down the best things on TV.
Drama:
Alias (mmm, Jennifer Garner)
Comedy:
The Daily Show
Cartoons:
Invader ZIM
Batman:TAS reruns
Clone High (now “on hiatus”)
Sports:
Sportscenter (duh)
FOX’s NASCAR coverage
Most of the things I watch have already been mentioned, but a couple that haven’t are:
Smallville: a pretty cool show. an imaginative take on the Superman story, expanding on Clark’s formative years. pretty clever, actually, the way they tie things together. A cast you can’t help but like, even if they’re not all great “actors.” Sometimes uneven in quality of writing, but overall it’s very entertaining.
Everwood: a family drama about a doctor and his two kids who move to Colorado following the death of the mom. This isn’t generally my type of show (they can often get preachy), but the characters seem pretty real and the actors are very good. Not my favorite show, but worth checking out.
I don’t watch much TV but I enjoy the Charlie Rose show every now and then and also Seinfeld re-runs.
The only show I refuse to miss is 24. I’m also usually up for syndicated reruns of the Simpsons, depending on the episode.
Shows I try to watch but don’t get mad if I miss:
Insomniac with Dave Attell
Trading Spaces
Shows I will watch if I flip by them:
CSI: Miami (although this show has never failed to make me say “Oh come on”)
SpongeBob (but only with my girlfriend, who enjoys the show far more than me)
This list doesn’t take into account any sports programming, though, which is probably what I watch most (especially hockey and college basketball).
Home Movies
Farscape
Six Feet Under
Simpsons
Buffy
Scrubs
King of the Hill
Simpsons
King of the Hill
The Daily Show
Trading Spaces
NYPD Blue
Home Movies
Late Night w/David Letterman
I like Junkyard Wars too, but I don’t know if it’s still being made or is just in repeats.
In no particular order:
24
Alias
Shield
West Wing
Six Feet Under
Sopranos
Sex And The City
CSI (Las Vegas only)
The Practice
Friends
Frazier
Everybody Loves Raymond
Boomtown
Miracles (ersatz-X-Files)
So Graham Norton (BBC America)
Queer As Folk
Keeping Up Appearances
Jack and Karin
The Wire
I Love Lucy