Not exactly new TV, but Boom (an offshoot of Cartoon Network) has been reairing Samurai Jack episodes in order. I discovered Samurai Jack, on a lark, channel surfing in a hotel room somewhere. Rewatching it is just spectacular. They're able do so much with so little dialog.

Another recent discovery, also from hotel channel surfing, is Burn Notice, which airs on the USA Network, and which recently completed season 3 and should be back for season 4 at some unknown point. It's something of a spy show, with a hint of MacGuyver mixed in. That, and one of the main characters is played by Bruce Campbell so they occasionally make oblique references to Evil Dead and the like. I'm hooked.

I really wish there were decent SF to watch. I fear Heroes will be another great world of suck, and Fast Forward will get stuck in neutral.

WARNING: the Wikipedia page for Burn Notice has tons of spoilers in the first few paragraphs. Beware.