Stutter on OTA with latest beta

I do not know if it was the update to TVOS 14.7 or the latest Apple TV DVR beta but the the stutter/film look bug that we had a couple of months ago on OTA channels has come back. Any channel I tune to looks fine at first, but after a few minutes it takes on the 24fps look. If I change channels it goes away, but comes back again. Running Experimental Deinterlace, Driver, and Audio Driver on my system.