In the past few months, I've noticed something new which happens when fast-forwarding through recorded shows. The way it used to happen was wonderful, you would see your show start and hit play. It would generally skip back 5-10 seconds so you didn't miss anything. 

Now, unless you fast forward at the slowest speed it skips back 2 or 3 entire commercials ... I believe this to be intentional to get people to watch more commercials, which defeats a lot of the purpose of a PVR. 

If this is indeed a new, intentional, feature it is a highly unwelcome one and unpleasant when binge-watching PVR recordings.