TV screen mysteriously blacks out at ~ 7:00 PM EDT once per week. Then TV Picture/sound spontaneously return after 45 minutes
My TV screen Picture+sound blacks out about once per week (at about 7:00PM EDT), and is unresponsive to any troubleshooting attempts (Re-Boots, etc.)
Some of the Xfinity messages appearing on TV screen during this 'black-out period' may say: "We are currently loading your program guide .. ..", etc.
Such content may reappear three or more times: starting the 5 min. countdowns but never make it past 140 seconds.
TV screen picture/sound then spontaneously return to apparent normal function after about 45 minutes.
During these episodes the same (TV) program can be viewed OK via the 'Internet Monitor' screen.
All connection (TV, Internet/computer) are hardwired. The Comcast Modem, etc. hardwired cable configurations have been maintained the same since 2014.