Yes the best way to see what these TVs can do, is to use an antenna for HD broadcast or go Direct TV / Dish.
Cable TV hasn't quite caught up yet. Especially the channels still broadcasting in analog.
Quality also varies depending on the model and set. The lower line Bravia looks OK, the top of the line models do have better color contrast by comparison. I think Mitsubishi's LCDs has a terrific picture as well. Sharp and Samsung are good ones.
As you've pointed out, it is all about the signal received. Hook up a true Hi Def source..especially 1080p and no analog TV can match them.
Cable TV hasn't quite caught up yet. Especially the channels still broadcasting in analog.
Quality also varies depending on the model and set. The lower line Bravia looks OK, the top of the line models do have better color contrast by comparison. I think Mitsubishi's LCDs has a terrific picture as well. Sharp and Samsung are good ones.
As you've pointed out, it is all about the signal received. Hook up a true Hi Def source..especially 1080p and no analog TV can match them.