Would someone please recommend a LCD-TV 46-50" that would allow me to watch the 1080p movies on dishnetwork?
I have a Sharp 47" that I just purchased in January of this year and it's not passing the test.
To pass the test, you need a TV that has a 72 or 120Hz refresh rate. Most higher end plasma and LCD models sold in the last 18 months or so support it. The Sony XBR4 or XBR5 models do. SOME of the current Aqous do, but not all. You need to check the fine print.
But unless you are looking to upgrade for another reason, I'd say it's not worth it.
1080p on Dish is ONLY for the streaming content. There are no channels broadcasting in 1080p. There are two versions of 1080p used in the US: 1080p60 and 1080p24.
1080p60 is true 60 FRAMES per second video. To my knowledge there is no way to get this to a consumer, and there's very little content created in this format. Sports would probably be the most useful place to see this used because of the fast motion.
3:2 pulldown is necessary to sync film to 60Hz video (either interlaced or progressive). One film frame is shown for 3/60ths of a second, the next is shown for 2/60ths of a second. So motion has an uneven pattern.
All modern displays deinterlace 1080i or 480i to progressive video for display but there can still be unavoidable motion artifacts. For content originated on film, there's always enough information to extract a full film frame for display (either 3 fields or 2 fields depending on the location in the 3:2 sequence). Any display with 48, 72 or 120 Hz refresh rates can sync to the original film frame rate and eliminate the 3:2 pulldown "judder". It can do this even with 60 Hz interlaced video. But the display must use motion clues to determine the 3:2 sequence and that process isn't 100% accurate.
1080p24 is used for film-based content (DVDs, Dish streaming content, etc.). It has a slight advantage to 3:2 pulldown elimination since there's no need to extract the sequence.
1080p24 actually takes 20% LESS bandwidth than 1080i60, so there's a benefit for transmission and storage. But I suspect that MPEG encoding takes this into account already. 1080p60 takes TWICE the bandwidth of 1080i60. HDMI supports the additional bandwidth and many systems use it between devices but it may be quite a while before we see content created in that format.