I watch SB every day when I'm able, even if I have seen the episode(s) multiple times already.
I also have a small number of SB DVDs; I watch them when I want a SB "fix" and the program isn't on the telly at the moment.
A month or month and a half ago, I told my father that I watch SpongeBob regularly, and when he asked what that was, my stepmother piped in and said that "it's a talking sponge".