I was comparing the two 50" Panasonic plasma displays (one 720p and one 1080p) side by side today and at about 9 feet, it seemed that the 720p had significantly more visible artifacts in the high motion video they were displaying - football highlights. This was at Costco, so the feed in theory is the same to both TVs. Could this be related to something other than the resolution difference? Everything I have read here and other places suggests that it would very difficult to see a difference based on resolution alone.

I couldn't reach the TVs to play with the settings myself, so couldn't do any experimenting myself.

Any thoughts?

Thanks

I was comparing the two 50" Panasonic plasma displays (one 720p and one 1080p) side by side today and at about 9 feet, it seemed that the 720p had significantly more visible artifacts in the high motion video they were displaying - football highlights. This was at Costco, so the feed in theory is the same to both TVs. Could this be related to something other than the resolution difference? Everything I have read here and other places suggests that it would very difficult to see a difference based on resolution alone.I saw the same effect on the PX75 vs the PZ700U at a couple of Best Buy stores with their macroblocky artifacty DirecTV HD feed, and i had the remote and was experimenting with the settings on both TVs. When they were displaying an ESPN-HD BMX competition, the PX75U was very macroblocky during fast motion but the PZ700U handled the poor source much better (barelyl macroblocky). The Basketball loop had similar problems. Then when they were displaying a long shot across a plain with mountains in the distance, the dark areas were noisy on the PX while they looked fine on the PZ. I've seen posts here saying the 1080p model has better processing than the 720p model which could explain it.