I set my dvr (HR20 100) to record "The Last Comic Standing" last night at 8:00 pm, and I checked it out this morning, and I discovered that it not only recorded about 50 minutes of HDNet and it played back like it was being fast forwarded (with no audio, just like when you FF). At about 50 min. into show the video froze and I started getting sound, but it was from Last Comic, and then the picture switched to Last Comic, and all was back to normal. Go figure????