I can’t play back dvr programs since the 10.5 update. Is there a way to go back to 10.0? Would a factory reset help?
A factory reset would not help. What channel/app are you using? Perhaps they need to update their channel. Have you reported the problem to the developer (which isn't Roku).
Using YouTube TV streaming. It’s multiple channels. My tv that doesn’t have the update plays okay.
I'd suggest reporting it to Google/Youtube, but I've heard that's pretty much impossible. There's probably some issue with this 10.5 update, but getting anyone to acknowledge it probably isn't going to happen especially with the ongoing dispute between the two parties. You may want to explore your options for other streaming devices if Youtube TV is something that's valuable to you.