We're having the same problem. I unplugged and reset the Comcast TV box. Everything worked fine for a short time then it shut down for 5 seconds then starts up again. I changed channels and the same results. I even pulled out all the plugs in the back, checked other connects, reset and still the same results. This has been going on for two days now. Help!
TORRES_3, sounds like you might be experiencing some signal leakage. Let's double-check and correct this! Please send me a private message with your full name for help. Just click my name and then on the next page, you'll see an option to send me a private message on the top right hand side.