PS. I just bougth a 4k DVD player and bought Oppenheimer in 4k. Will test it next week. While this solves the problem for good movies (you can buy a 4K DVD for less than 2 theatre tickets), it doesn't solve the problem for random moives you want to wath occasionally. That said, Netlix is far from the worst. I refuse to watch a movie on Hulu.
My new DVD player will also be my HD streamer and it is supposed to have upscaling so we will see if that helps Netflix.
Jerry