Gainesville OTA Channels
I have a Directv system like jriems reported and get the same programming information on my guide. I wonder if WUFT is using both its VFH and UHF frequencies and broadcasting on both. The 5.1-.3 channels are the same programming as the analog 5 and the 36.1-3 channels are equivalent to the analog signal, PBS HD and and PBSYou which is why I suspect they are broadcasting both on VHF and UHF. I suppose what I am seeing on 53.1 is mapped from 28.1 and is the same signal but that is guesswork.
Best I can tell there is no 53.2 like there is a 28.2 but my Directv Highes Receiver does not give as much information as my old Samsung which operated briefly last year but then gave up the ghost and was replaced by Directv.
The problem is not with your DirecTv HD receiver, but rather WUFT-TV. WUFT is mapping their digital channels improperly.
I contacted WUFT-TV's chief engineer two months ago, alerting him of this issue. He did not seem interested in investigating or correcting the problem. His response was that WUFT is broadcasting on their correct digital frequency, (36.1, 36.2, and 36.3) and that if the signal was mapping improperly, it must be a problem with my receiver.
To make the digital transition as "painless as possible" to the general public, the FCC mandated that the licensee's new digital frequencies (36.1, 36.2, and 36.3) map to the MAIN frequency of their analog channel (in this case, 5) to avoid confusion as to where the new channels and content were located. This mapping is achieved by PSIP data being transmitted by the station. In this case, 36.1 should map to 5.1, 36.2 should map to 5.2, and 36.3 should map to 5.3.
The problem is that WUFT-DT is mapping digital channels 36.1 and 36.2 improperly. Therefore, the content displayed on 36.1 should be the simulcast of the analog signal (Channel 5), and the content for 36.2 should be for PBS-HD. The program guide listings are correct for 36.1 and 36.2. However, the video content mapped to the two subchannels are backwards (and incorrect.)
To WUFT's credit, the PSIP and channel mapping for 36.3 (5.3) are correct.
Your DirecTv reciever IS working properly. Until WUFT acknowledges and corrects this issue, you have limited viewing options in utilizing the program guide. You can continue to view content on any of WUFT's digital channels (36.1-36.3) without program listings ("Regular Programming" appears in the guide,) or you can use the program guide which appears at 5.1 and 5.2. If you are using a DVR, you will have to set up manual recording times for each show referenced from the program schedule on 5.1 or 5.2, and have the DVR record the corresponding video on 36.1 or 36.2.