I am experiencing a five second delay between selecting a new channel from the C41-700 mini and the time the video for that channel appears on the TV screen. This time delay between channel changes is unacceptable for channel surfing. My equipment: HR44/500 DVR/server, Software: 0xbf4 Aug 24, 2016 C41-700, Software: 0x861 Apr 4, 2016 AM21 Off-Air Tuner Additionally, I am experiencing up to one minute delays between selecting an off-air channel and the time it (may) appear on the TV screen. Often, one or more off-air channels fail to appear at all on the C41-700. Numerous other anomalous behavior has been experienced on the C41-700 including: Inability to change channels without powering down and back up. (lockup) Inability to change between double-play channels. ... Should I consider trading the C41-700 for a DVR to overcome these issues? If so, which one? Should I upgrade the server? If so, which one? These delays appear to be increasing in duration and frequency since the AT&T merger. Is there a new programmer team in place as a result? Is the AM21 Off-Air Tuner still being actively supported (and part of the test suite for new firmware releases) by DirecTV? I am forced to use the off-air tuner as a result of the Local Market Regulation, so that I can receive PBS in Hi-Def, as the local PBS station is Std-Def.