Further info to support doogiehowser (from \\/\\/ \\/\\/ \\/\\/ .hdguru.com/will-the-2007-hdtv-you-choose-give-you-all-resolution-you-expect/187/
and also the reason why I have chosen PDP (Panny TH50PF10UK) over LCD (Sony/Samsung). I also will tend to watch more sports and use the panel more for TV viewing than my HTPC.
Static and Motion Resolution
A particular HDTV may resolve a stationary test signal at full bandwidth, but what happens when motion is introduced? The answer, the on-screen resolution drops. This can have a significant affect on your viewing experience, especially if you tastes tend toward sports and action. How much resolution loss occurs? To find out I used a new test tool called the FPD Benchmark Software for the Professional. This Blu-ray disc contains a pattern called a monoscope pattern (pictured above) which is made up of a series of four black lines drawn so they gradually come together in a wedge like pattern that appears at the top, bottom and sides. There are numbers adjacent to the lines indicating resolution. One section of the disc has the pattern stationary (static resolution), in the following section, the same monoscope pattern moves from left to right (motion resolution). The stationary number where all four lines could be distinguished was recorded and then the test was repeated with the motion pattern with the area where the four lines could still be discerned as separate and not blurred together was noted. These numbers were then compared.
The result, three distinct groups emerged from this test of the twenty 1080p displays. All displays in the top group were plasma HDTVs. They all had a static resolution of 1080 lines and a measured motion resolution of 830-880 lines, depending on the specific display. The next group consisted of microdisplay rear projectors, static measured 1050-1080 (depending on the display) while motion resolution ranged of 610-780 lines. The bottom group were all the LCD flat panels, with a static resolution of 400 (one panel) to 1080 lines and motion rez coming in at 360 lines (one set tested) to 600 lines. Three of the LCDs tested were 120 Hz models (one was the Sony KDL-46XBR4 reviewed here), all 120 Hz models had 600 lines of motion resolution.
Good luck in your purchase...