I don't watch much TV either but when I do, my top favourite show to watch would be a documentary. The rest are sci-fi shows like star trek, stargate, battlestar galactica. Mythbusters is also up there with the good shows when I remember that it's on!
I love Iron Chef! Those guys are culinary masters. But, I've learnt that you should never watch these guys before you've had or made dinner.
Hey Ice, is that the new astro boy that they are showing now?
Oh and She-ra was way better than He-man

(yes, I even had the doll!)