Microsoft Uses PC Battlefield 4 Footage in Xbox Promo
If you look closely you can see the Backspace key to access Battlelog. Both the Xbox One and 360 don’t show Backspace.
"Well why would they do that?" you may ask. Well because Xbox One runs in 720p, making that a huge graphical disadvantage. They want their promos to be as pretty as PC and PS4!
Click the link above to watch the video and read a full article.
I think you’ll find Sony has done this in the past as well.