Konrad A. answered 01/27/22
Filmmaker with 15 years of experience
You probably want to check your new TV's settings and look for an option called something like Motion Smoothing. When you find it, turn it off. That will get rid of the soap opera look.
As for old-time special effects...some of those techniques are still in practice today. Check out this video: https://www.youtube.com/watch?v=oBSpuZDKaKI They still hold up!