Jumpster Jiver wrote:

Never heard of dead pixels in a CRT.

I used to see this occasionally in minor brand CRT monitors.

I have a Sears-Sanyo TV made in the 1970s whose Hitachi CRT is still
bright and sharp, but from day one it's shown a small white dot, about
1" from the right edge, whenever the screen is blue in that area. I
decided to ask Sears about this defect 12 years after the purchase, and
they issued a $50 refund check without protest.