When you watch TV shows from the SD era that has been scanned into HD from film, you can sometimes see this. For example Seinfeld.
Occasionally things will be slightly out of focus, but it wasn’t apparent on a SD CRT so they shot the scene. On an HD screen you can see it and it’s kind of distracting.
Occasionally things will be slightly out of focus, but it wasn’t apparent on a SD CRT so they shot the scene. On an HD screen you can see it and it’s kind of distracting.