The 4th generation isn’t as good as the old quad legacy and I am having an issue with improper guide information for channel 22.1 in Dayton, Oh. The guide shows programming for Cozy Tv but in reality WKEF virtual channel 22.1 is the ABC network affiliate for Dayton. I hope they get this corrected as I can’t easily set recordings for ABC shows.
If you haven’t already, try resetting your system to different, but nearby ZIP codes in your area. This can sometimes solve this problem.
I believe WKEF is NextGen TV only so the Tablo would not pick up ABC. They broadcast Cozi on 22.1 instead.