A large part of the discussion related to panel types is in regard to frame rates for gaming purposes, or sometimes refresh rates. Most LCD TVs are locked to the powerline 60Hz refresh, a technique that minimizes flicker with flourescent room lighting. Thus the screen refreshes every 16.67ms, and any panel with <10ms gray-to-gray response time works fine. Most video content is from film source (24fps) or video (30fps), so the source itself contains plenty of motion blur - you only need a panel that is fast enough to not add noticeably to the blur already present.
This is very different from a video game environment where there is no motion blur in the source, and any blur that you see has been added by the display.
Most of the panels used in LCD HDTVs are the IPS types, which are suitable for usage where the primary application is slower video frame rates, they have certain advantages in black levels and viewing angles. Note that seldom is a premium grade "Super" panel (S-IPS) found in an HDTV, it just doesn't need the speed.
A few HD-ready monitors like the Westinghouse LVM series have S-MVA panels, because these are primarily computer displays with the secondary video application. Even so, the bigger a panel, the slower it is, due to the pixel size and switching time - a good response time for a large panel is 8ms or below - the Westinghouse LVMs have a 6.5ms spec.