I am suspecting a poor cable connection. There are more of these than before:
So I will check the cables to see if that works better. Also I have removed the EnableCaModuleTweaks. The TV6 channel was encrypted but it was my wife running the TV at the time so not sure exactly what happened. I have after this error tried the same channel and it works fine.
I think my next order of business is to double-check the coax signal cable.