Randomly, but several times per week or month, I turn on a TV connected to a Bolt or Mini and when I go to Live TV In the morning, hoping to be able to rewind and play the buffer in quickmode to catch up on whatever is playing, instead there is a black screen. The reason is because the tuner has spontaneously changed to a channel number that doesn’t exist. For example, channel 3. Not 3-1 or 3-2, but 3 which is an invalid digital channel number (and not save in the list of channels). If I manually try to tune to 3, it automatically skips up to 3-1. So, I don’t know why it keeps switching to this channel when left unattended overnight. How can this be fixed?