I've watched every (UK) series of Big Brother and have mostly enjoyed it. It has the odd boring patch but I can typically manage to watch it every night. And also watch BBLB and BBBM from time to time too. Series 9 starts later this week.
And at the moment I am intending to not watch it. Not even the first one where we meet the freaks. I'd enjoy it if I did watch, but I'm just figuring how nice it will be to have an extra spare hour each day. I could do useful things in that time like sleep or play Final Fantasy or drink.
I'm not sure how long I'll manage though - it's normally quite unavoidable and I am weak willed.