Ps3 - LCD HDMI?

Question

just bought new bravia LCD and connected via hdmi to my ps3, when in xmb my Tv recieves 1080i but when I insert a game (GTA IV, Motorstorm) My tv recieves 720p

How to get more than 720p when playing a game ?

(IN the back part of the game box says 720p/1080i/1080p)

Answer 1

you should but this question in Consumer Electronics/ Games and Gear/ Playstation. They will give you a better answers