2 in my room (14" portable with analogue so I can C64), dads got 2 (1 in his PC room, 1 bedroom), sister 1, mum 1, uncle 1. so 7 in total.
and also 5 computers with 1 monitor each, and 2 spare monitors in loft. 7 monitors too.
so if you count PC monitors as TVs if you watch iplayer on them. I have 14 'TV screens' in the house.