In the early days of BB, my wife was really into watching it. I must have seen a few minutes here and there, but never actively planned to sit down and watch a whole episode.
After a few series, my wife concluded that, by then, all the players went into the house with deliberate strategies on how to win, and she gave up watching at that point. It had ceased to be a "social experiment" and had just become a long drawn out gameshow, or maybe freak show....