Ours is a mere 49", but it's in a big room, so we could go larger. I do eye the sets in Costco and John Lewis, but then think that I don't watch that much TV. Mind you, the prices have really dropped. As a student I got by with a 16" 'portable' (barely) set.

You don't seem to get the phone box cards so much these days. I would see a lot around King's Cross, but maybe they advertise online these days. Who actually uses a phone box these days anyway?