There is a lot of talk about the contestants' experience of Big Brother but little about the viewer’s experience. During its decade on air there was a drop-off of both the red tops' shock-horror coverage and the intellectualised justifications put forward by the quality press, and inevitably this resulted in viewing figures also declining with each passing year. But I confess I remained an avid viewer. It’s not what you watch, it’s how you watch it, I would say to baffled friends to justify my addiction.