My old 60" Kuro was 50 kilos, my current Panasonic OLED is 65" and 32 kilos - bigger but lighter!
I'll admit that flatscreen TV's wall mounted do look really space age, especially if you can hide the cabling, but I just don't have the balls to do it. I know I'd be lying awake at night worrying that I'd suddenly hear a huge crash.
I can actually pick up my current TV on my own (you definitely needed two people with the Kuro) and I know the load is spread, but I'd still be nervous. Having it on a pedestal stand on an AV cabinet eliminates all worry for me.