Funny thing I never watched it at all for the first 10 seasons however got hooked on it during a SG1 maraton on the Space Channel..now I watch it at least once a day..
I watch very little TV, actually -- mostly just the late news when I get into bed, and some of whatever show Rob has on after that, if I'm still awake. That's likely to be something like Myth Busters or How It's Made. He's a good boy and saves Extreme Machines and things like that for when I'm not there.