Good news: my parents TV has a hex editor
Bad news: I'm buying them a new tv

I *think* it's 24-series EEPROM from a good dig at the service-manual. I have programmers, and a photo of the expected contents, and I know which bits to flip back. Maybe I can fix this.....

Fucked if I'm going to Curry's tomorrow.
This one's an MX25L4005A, dumped for curiosity before I grab a dump of the actual IC.

Aaand the actual EEPROM. Found the bits I flipped, set them back 😇
Time to reassemble the TV and see how badly I fucked up !

Its alive! Mpeg decoder is still as shit as usual, but thing doesn't think it's a plasma anymore, not gonna get very far trying to address the LVDS board like a plasma!