I don't know about that. Granted, I don't know where my age falls in the average age range here, but growing up, my family only had one television until I was in my teens, and even then, it was because my aunt was getting divorced and wanted to get rid of a lot of her stuff from her first marriage, including their dusty old TV.
I was sort of thinking a technology integrated home has been more prevalent over the last 10 or so years, but maybe it's a sign of how out of touch my home is set up compared to others today. Got one TV with the systems hooked up in the living room, then a small tv in my bedroom with the dated consoles hooked up for when the kids are in bed and I want to be nearby in case they wake up.