I've had my HR34 for over a month, and is a great addition to my other DVR, the HR24. I'm setup for whole home, with the HR34 in my basement theater room, and my HR24 upstairs in the family room. In our neck of the woods (central North Dakota), an OTA tuner is practically a necessity. Since I upgraded from an HR20 with the built-in OTA, the AM21 is the last piece to install. I need OTA for a couple big reasons. The western half of ND is considered one DMA, so legally Directv feeds the Bismarck affiliate to over half the state. Living in Minot, the Bismarck feed is 100 miles away, so if you want local news and weather, up goes the antenna. - The company that broadcasts FOX never made a deal with directv at all, so OTA is the only option. - and, of course, subchannels. We don't get many, but there's a local weather channel, and three more distinct PBS channels.