Where's da prooooffff???!!! xD
I haven't had time m8 at the moment but trust me you can, the guy upabove showed you how to do it maybe my TV was on fullscreen mode at the time to begin with!
Edit: tbh m8 during the week I don't have time to do this sort of stuff I'm really busy with work and family life in general taking a screen shot is not one of my priorities, if you don't believe me then just wait for me to do it!.
Edit again: I know your only joking with me by the way so I thought I would take a shot of my 12inch schlong instead, I thought that would be way more interesting to the general public!