I've noticed a lot of CRT TVs seem to flex when light changes dramatically. I initially noticed it on my parents cheap Goodmans widescreen, straight lines being distorted and movement when something onscreen happens. However I noticed it also on a friends JVC and I was in the Sony store today where it was also present (although much less). Is this just the price you pay for using a CRT screen or have any manufacturers minimised it?
Bizarrely I saw a Grundig in Curry's showing a 4:3 picture on a widescreen and its edges were spot on straight. The screen was excellent, the casing not so.