Toddlers and Tiaras for me too! It's just a fascinating trainwreck. I'd probably watch it somewhat often if I had cable. TLC is really good about guilty pleasure shows. Once my sister made us watch Sister Wives with her, and it was just... weird.
Also, anyone seen that show Semi-Homemade with Sandra Lee? I haven't seen it on TV (again, no cable), but some nights I just watch clips of it on Youtube for hours. Her idea of cooking is... different. It's not the shortcuts she takes, but that it just either looks weird or probably won't taste good (or both). Check out her Kwanzaa cake.
There are probably a billion more things but I can't think of them right how haha.