How many of us genuinely don't watch any TV?

[vanordinaire]

It's one of these things that lots of people claim, that they don't ever watch TV, but I suspect most are telling slight fibs. Personally I'd like to be able to say I never waste my time watching TV, but to be honest, while I never set out to watch it and never switch it on, if I'm in the room and there's a TV on, I'll usually end up watching, I find it quite addictive once I start.
My brother doesn't have a TV, purports to hate it, but if he visits me or my Mum, the TV goes on and he's engrossed in minutes. I suspect this is the case with a lot of TV haters?