I have recently moved house and now have access to 2 sony bravia TV's but cannot get my 360 to properly display on either of them. I have tried on both TV's multiple HDMI plugs (checking ones already in use that i know are working) and multiple HDMI cables,
as well as connecting the 360 to 2 computer monitors and my old LG TV which it still works fine on all of.
The greatest success i had was managing to change the display setting to 1080i, which worked on only one of the TV's but resulted in something i have never seen before where it worked fine for about 2 seconds, then goes blank as though nothing is connected for a few seconds, then goes back to displaying the xbox fine for a few seconds and this just repeats forever. No other display settings will show anything at all.
it is working perfectly through all other settings on the other TV's/Monitors i have used but not the sony bravis TV's.
The LG TV it is working on is a 42LV3730.
The Bravia TV that the 1080i display setting is flashing on is a KDL EX500