how do I switch the cable to "standby?"
ok - I have a power button and an all on button. neither one cause the cable box to go to a red standby light. It is a DVR if that makes a difference. I have the Vizio menu up on the television screen to select input source. the choices are:
I currently have the TV TVa selected
it isnt the box. I called comcast and they checked it. They are sending a technician out tomorrow -- sorry we could not solve this remotely. I know you tried so I will accept the answer...if you have an epiphany - let me know!