Heroes! also LOST although that show has its bad spots - we all need to tell the TV producers It's the story line we like, not the rated-M-for-mature stuff. I do watch some reality shows -if I have to be sociable. No, honey I really like 'em...really...erm.
STNG, ST-TOS, STVoy, DS9 and STEnt have all been running on broadcast TV first, then my VCR and now on DVD. I still haven't seen 'em all yet (thankfully). I also like Monk, The 4400, and Robin Hood on BBC America.
I'm beginning to hate TV for its insistence on "cutting edge" programming which forces the relatively clean SciFi (and other types of shows) to try to compete with sex and graphic violence. More often than not, I've been forced to turn stuff off lately that offends!
A great TV movie (Hallmark Channel) was Avenging Angel with Kevin Sarbo. His character was kind of an influence for my Cowboy alter-ego.
Mythbusters, "Dog Fights" (about air duels, not arf-ers), Future Weapons and anything on Technology round out my viewing, when I can watch that is. Most of the time I'm asleep in my chair. LOL