Each week, I make sure to watch House, Heroes, Medium, and at least one Law & Order.
Heroes is frustrating, because so little actually happens each episode. It's following this new format of teasing us along with trickles of story. I suspect that Lost follows a similar idea.
House is fun, though I'm finding that they're like Grey's Anatomy - with less medicine and more drama each episode. Yuck.
Medium is awesome, but mainly because of the acting. The stories are fun, but the acting involved is amazingly realistic.
edit: I currently don't have access to BSG, so I'll be renting the third season eventually.