When I turn on 1 of my tv’s a blue banner shows up that says no video
use your TV's remote to change HDMI input to the name assigned to your set top box.
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It is also possible for an HDMI cable to fail because of electrical fluctuations (storm or other power problems). If your have more than one HDMI cable, you can exchange them to see if problem resolves. Also; older generations of HDMI cables do not work for higher resolutions of video (1440p and above).
I am not a Comcast Employee. I am a Customer Expert volunteering my time to help other customers here in the Forums. We ask that you post publicly so people with similar questions may benefit from the conversation. Was your question answered? Mark the post as Best Answer!
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Rustyben
Expert
•
24K Messages
1 y ago
use your TV's remote to change HDMI input to the name assigned to your set top box.
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MNtundraRET
Expert
•
4.3K Messages
1 y ago
It is also possible for an HDMI cable to fail because of electrical fluctuations (storm or other power problems). If your have more than one HDMI cable, you can exchange them to see if problem resolves. Also; older generations of HDMI cables do not work for higher resolutions of video (1440p and above).
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