Won't Play Recorded Shows

I tried to play a couple of shows that were recorded a a few months back. I got this message: "The TiVo box couldn't record this program because there was no signal. You may have tried to record on a channel that you do not receive". They are recorded on a channel (PBS) that I no longer receive due to a line up change, but I did receive the channel when the shows were recorded and they did record. I can watch the recorded shows vis IOS on my iPhone. They are there.



Why do I get this message? I can stream the program, but not watch it on the Roameo. :confused: