|64”? You mean 65” probably, and your TV is probably 4K? |
Sony TVs are pretty good with lower resolution video like SD, as well as HD (720P, 1080i, 1080P), and 4K. But any mainstream brand 4K TV like Samsung should do a great job with 1080P.
I have a 55” Sony 700D and a 65” 900F and they’re both good on older video, however the low resolution video such as TV shows from the 1950s to early 1980s looks blocky just because of the large TV size and the original programs are only available from low resolution analog video tape.
What are the video sources you are using, and how are they connected?