Yep, we had some of them too. I remember one the shadow mask came loose on one corner and you could shake the TV and see it moving in there by the color purity changing with a white screen displayed on it. When they first came out with the larger screens 32" and 35" they had some issues. Those were beasts to change out due to the weight of them. Biggest CRT we had to replace was the RCA 38" widescreen. Think there was someone making a 40" CRT for a while. They really did not want you taking a degauss ring to them as you could actually make the problem worse. But like the old CRT rejuvenation and burning the crud off the color guns, you used them when you really had nothing to loose other then a chance of buying the customer a little more time. I still remember when they sold a step up transformer for the filaments. It kicked up the filament voltage so it ran hotter and made the picture a little brighter for awhile. At least until the filament burned out. I was authorized factory warranty servicer for RCA, Zenith, North American Phillips (Magnavox, Sylvania, Philco) at that time. We did not take on Sony and Toshiba warranty work until about the time when the Plasma, DLP and LCD's started to role out and RCA went overseas and Zenith went to LG. I had several customers that worked at the RCA (Thomson) picture tube factory in Circleville, Ohio until it shutdown in 2004.