One of my favorites is Stargate. Kurt Russel was awesome it the movie... However the TV series with Richard Dean Anderson and Amanda Tapping. EXCELLENT!!
I think Richard Dean Anderson Beats Chuck Norris any day!
I feel like I've never seen stargate, but that i problably should have.
I've never really gotten into too many sci-fi tv series, they always seem to get cheesed up by some TV executive someway. Warehouse 13 wanted to be promising, but just too cheesy.
Sci Fi probably takes a bigger budget and higher level thought than TV can produce, especially in the new cheap economy of reality TV.