Weird TV program behavior on different household TVs

The past two mornings at about 8:00 am when trying to watch news on channel 1115 on the den TV (connected to X1 DVR cable box), after 3-4 minutes the program would freeze, unfreeze, freeze, unfreeze, every few seconds like it was stuck in a loop. No other channels I checked were exhibiting this behavior. I checked channel 1115 on our other two TVs which are connected via WIFI set top boxes and they were not exhibiting this freezing/looping behavior. I unplugged the X1 DVR cable box from power to reset it but after it went through the setup routine and reconnected the odd behavior repeated.

I checked all this again two hours later and the freezing/looping behavior had ceased but another strange anomaly was now present. The program news segment I was viewing on channel 1115 was totally different on the TV connected to the X1 DVR cable box than it was on the two TVs connected via WIFI. It was not just a few seconds out of sync like you normally experience, it was a totally different program segment. 

I am at a loss as to how to explain this.

Edit: By the way, channel 1115 is Newsmax TV. After doing a little googling, I note that a lot of xfinity customers have had freezing problems with this channel. It seems be a problem with the carrier service, i.e., xfinity, not Newsmax.