Had a strange problem last night. I had recorded programs from HBO and SHO. Both played back with normal sound but jerky video, kind of like it was slighty speeded up. This problem did not exist with recorded programs from a local HD station I watched yesterday morning. One of those programs was recorded early Saturday morning and the other two recorded early Sunday morning. I've never seen this problem before. I have a program set to record tonight from an HD local. Will be interested to see if I have a problem with it. This is the newer of my two 622s. Hope it's not a hard drive problem.