I've seen that in a number of newer homes that I've been in -- the only location to put the TV is right over the mantel, because that's where the builder put the cable and power outlet for the wall. Heaven forbid there's someone like me, who still has a tube TV that won't fit on a mantle. But then, even if I did have a TV that would fit, I still wouldn't put it over the mantle, because a) the viewing experience sucks, and b) it's tacky.