Twilight-zone-esque curse idea
You get cursed to literally see the truth.
This ruins all modern media. Every digital manipulation is transparent. You can no longer see CGI. Anything shot with a green screen, you see only the people and the green screen itself. Any motion capture rig you just see instead of the character it represents.
Animation is an almost entirely blank screen. Oddly enough, though, older traditional animation (sequential photographs of cels) work just fine.
Practical special effects still work, so for example the original versions of the Star Wars films are good, but the prequels and even sequels are almost unwatchable. Rotoscoping still seems okay.
You become an expert on films shot in the 80s on back.