I have been studying DirecTVs re-use of the Transponder/PID streams which, on Gary Toma's TPN maps, are shown as Cinema HD channels. The data captures which go into the the TPN maps are taken on Wednesday mornings, when the PID streams in question are usually assigned all to Cinema channels. During the following day and evening, the Cinema channels go offline, and the transponder/PID combinations are then assigned to part-time HD sports channels as needed. The movies are scheduled so that they are complete by the time that the sporting event begins. Then, when the sports events are over, they are either assigned to another sports event or revert to Cinema channels. Attached is a log file of the changes over a 24 hour period starting after the Wednesday, 2/1/2017 capture, with the status checked every two minutes. I found it enlightening.