I'm assuming you're talking about cooking shows. The current ones I like are:
1) "Good Eats" with Alton Brown. Entertaining and informative. I have a dozen or so of his videos. Interesting that his recipes always work.
2) "Fresh" with Anna Olson. Like Alton, her recipes always work and her prep is instructive.
3) Iron Chef. Ideas galore. Very formulaic, but you can learn from this.
Watch and enjoy the occasional DDD and French Food at Home, as well. But DDD is too much like when I worked at a Drive-In Theatre as a short order cook, and I know what Guy doesn't show!
Old ones I miss are:
1) Emeril Live - nostalgic. Used to watch it with my Mother before she passed on.
2) East meets West with Ming Tsai. Learned a lot from this guy.
3) Grillin' and Chillin' with Bobby Flay. Again. lots of ideas. From his "folksy days."
4) The Fat Ladies. Hey, who didn't like this one?
Fortunately I taped a whack of these shows. I got interested in cooking seriously by watching these guys perform.
I liked Molto Mario, as well.
Outside of these shows, the only other things I watch are the steroid monsters on WWE (because it's the worst thing on TV - hilarious!), and the occasional hockey game or NFL game. That's it.