No ... just because a tv is 1080p doesn't mean it won't accept any other resolutions. Even if that wasn't the case, as i said the 360 will upscale all content and output it at 1080p.
HDMI can output a variety of resolutions including 1080i/p, 720p. However the 360 will upscale everything to 1080p if thats what you set the default resolution at.
Log in to comment