EUREKA is a sci fi show about a normal sheriff in a government run town full of geniuses. a lot of fun. (3 seasons on dvd)
BIG BANG THEORY is really funny (3 seasons on dvd)
best space sci fi show EVER is BABYLON 5. i’m getting ready to climb back into that universe for a while (5 seasons, 4 or 5 movies)
also FIREFLY but it only lasted 1 season plus movie SERENITY
FARSCAPE also sci fi (5 seasons?)
CASTLE is a hoot
I vote for Babylon 5, also. Watch it from the beginning for the story arc.
EUREKA