If you divide the number of pixels of a 4K tv by 8. You would get 1036800 wich is a little more than what 720p T.V's have.
So each single player would get a 720p (a little more, a 768p aprox) resolution on a 8 players split-screen game.
I hope they use this feature at least in one game. That would be totally awesome even if the game is crap.
Yet I still need to justify my obsession with collecting controllers.
15 PS3 controllers (I have one of every single color, except the pink one
20 Xbox 360 controllers (Most of them are Special edition) and I have only used 2 of them, the one that comes with the console and a wired one on my PC.
I spend more money on controllers than on games.