We drooled over David Boreanaz as Angel in "Buffy the Vampire Slayer", and yes also watched his spinoff "Angel". He is currently starring in "Bones", which actually looks like a really good show, although we haven't seen it yet.
It is totally one of those shows that we know people are watching (as it's in it's second or third season - maybe fourth?), but it must conflict with something else we're watching...We know, we know, "Get TiVo!"
Seriously, get TiVo.