I upgraded to a 32PW9616 from a brand new 32PW8707 which had problems displaying 60Hz signals. Instead of selecting a different brand, I decided to stick with Philips in favour of their Real Flat picture tube (aka Cybertube), since I found it almost entirely flat behind the glass and be among the most vibrant of the flat tubes. I also looked at Sony sets, but felt their picture is too harsh and I wasn't impressed with the specs of their digital processing. Before I made the upgrade I thoroughly researched the 32PW9616, reading reviews, looking at it in stores and finding out what was inside. I even looked down the vents of every 32PW9616 I found (7 in total) to find out what tube was inside. In all cases it was the Philips Cybertube in two variants (W76ERF041X044 in the newer sets, W76ERF031X044 in the older ones). However, when I got my 32PW9616 the picture tube was dramatically different, it's not at all flat behind the glass and the picture is fuzzy and impure, much like an uncalibrated projection TV. I have raised the sharpness to max and I still feel the picture is pretty crummy. On the 32PW8707 I had the sharpness set to the next lowest setting since it had the least impact on the picture. The core processors in those two sets are identical, and I've tried turning off all extra features like DNR and Natural Motion without the picture getting any sharper. I looked down the vents and was shocked to find that the tube inside is a Panasonic Quintrix F (type number W76EKW10X73). When I've seen this tube in Panasonic's sets it's sharper but I never liked it. Ironically, I culled Panasonic off my wishlist since I wasn't happy with the lesser flatness of their internal tube faces. Has anyone else had this experience and/or know what has Philips install faulty tubes from a competitor, in what is still one of their most advanced sets?