So due to the mid-season break/writers strike, I have little to watch.

Shows I have watched :

Star Trek (all of em)
Buffy
Angel
Bones
Heroes
Lost
Criminal Minds (brilliant!)
Bionic Woman
+Others I cant think of.

I like Sci-Fi/Fantasy but greatly enjoy comedy also. Suggestions welcome.

Off the top of my head.

Sci-Fi

Stargate
Starge Atlantis
Battlestar Gallactica (Reimagine Series)

Comedy

Monkey Dust
The IT Crowd
Scrubs

Farscape, great show killed off in its prime.

Sliders Seasons 1&2 some great scfi right there though it went down hill in the third season.

Also I got the Alien Nation TV series box set a few months back for a bargain price thought id take a gamble on it and it turned out to be really enjoyable, its just a shame it got cancelled, though it was on the network of doom (FOX).

Babylon 5 is another great show which I recommend if you like long story arcs.

House MD is worth a look if you havent tried it - only programme where we have bought the DVDs.

There are always the infinite Top Gear repeats on Dave.

I was thinking about House, a mate says its great.

Sliders - got all 5 seasons. The 5th is awful.

House is well worth a watch.  Also got into Grays Anatomy as a result of my wife liking it and got sucked in.  You could also try, Pushing Daisies and there is a crime series called Life which you will like.  

With you on Criminal Minds, am up to date (series 3) and have to say its the best series I have seen in a long time!!  Check it out if you have not already.  Truly awesome!

dexter
weeds

your life will be destroyed watching these enjoy!

Dexter (Only just started watching it but cant stop!),
Chuck (A nerd, a hot female agent etc etc),
Reaper (Wierd comic style comedy),
Stargate Atlantis (on a break till January),
Battlestar Galactica (Just released a movie called Razor),
Weeds (Brilliant, they have just finished S2 in America),
House MD (Only just got into this and enjoying it a lot),
Heroes.