It's a pretty horribly mediocre show, but I think one that will survive because it's a) safe, b) FOX for some reason puts it in good time slots, while other more deserving shows get shafted/cancelled and c) there's a couple of cute chicks in it.
It's almost how it used to be with me and Las Vegas, where I'd leave the TV on or tune it to NBC prior to whatever I wanted to watch that was in the same time slot (I think it was L&O). Such a bland show, but not horrible.
Bones is the same way. It's always on before or after a good FOX show. Last year, it was House.