Firefly, love the story, the humor, and the characters.
Stargate Atlantis or SG-1, or Alcatraz, the latter was just finding its way
the dinosaurs
dunno if it's called that but it was a show for children about a family of dinosaurs and the baby was hilarious it always hit the father with something and said "not the mama"
Two and a Half Men, with Charlie Sheen
Twilight Zone, the original series and the first two years.
Spartacus !!! Hands down.
So many good ones mentioned, but it if is just one "My Name is Earl"