You must have done somthing wrong, or it was the TV.. The increase in sharpness & detail is huge..5-6 times the resolution of SDTV..Gaming in HD is awesome.. I played on my 42inch display 480i & 720p..HUGE fricken difference...
Yeah I have a 65" Widescreen, and it is night and day from HDTV gaming and regular gaming on the 360....