Have a CT-36HX40 (36" 4:3 480p/1080i Tau). Besides a small amount of geometrical distortion (bow at top and bottom), the set has overall been excellent. The upscaling of 480i content isn't that great when you look closely (too much of that "digital" look on TV mode, and iffy deinterlacing on GAME mode) but I don't even notice it once I'm at least several feet away from the screen. The contrast and color of the picture are superb, as is the overall build quality and construction (this set was built before QC started going a bit downhill and CRT outsourcing became rampant). Some of the buttons on the original remote tend to get stuck or not work, but I am still able to use all the PIP and split-screen functions with a universal remote. My only other complaint about the set is that it does not accept a 720p signal (only 480i, 480p, or 1080i). But overall, it has an excellent picture (especially on 480p and 1080i sources), has been very reliable, and gives great sound out of the built-in speakers. I wouldn't trade it in for any flat-panel HDTV. From what I understand, many other Panasonic Tau owners feel similarly.