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Xfinity TV Audio Issue Troubleshooting - Xfinity Support
https://www.xfinity.com/support/articles/troubleshooting-audio-issues-with-xfinity-tv#:~:text=Reset%20the%20audio%20by%20pressing%20Mute%20on%20the,30%20seconds%20and%20then%20plug%20it%20back%20in.
Sound, but no picture on HD channels | Xfinity Community Forum
https://forums.xfinity.com/conversations/nonx1-service/sound-but-no-picture-on-hd-channels/602dadd3c5375f08cdd4a4f1
Sound, but no picture on HD channels. ... This almost sounds like your area finally upgraded to MPEG4 video, and your box doesn't support it. I thought Comcast had upgraded everybody by now. 0. 0. New to the Community?
Xfinity TV Audio Issue Troubleshooting - Xfinity Support
https://www.xfinity.com/support/articles/troubleshooting-audio-issues-with-xfinity-tv
Access the TV Adapter's or TV Box's main menu. Select Setup. Select Audio Setup. For the Set volume to optimal stereo option, select Yes to automatically adjust the volume to the optimal level for stereo output. Note: If you select No, your current volume settings will be retained. It may be necessary to repeat this procedure several times.
HD Troubleshooting for Your Non-X1 TV Box - Xfinity …
https://www.xfinity.com/support/articles/troubleshooting-your-hd
If There Is No Picture or No Sound on HD Channels Verify that you subscribe to the channel you're trying to watch. Check that the TV Box is on. Confirm you're tuned to an HD channel. Double-check all connections and make sure you're using HDMI or component cables. See if you're able to view other HD channels.
Why Your Comcast Video Doesn't Have Sound - The TV Answer Man!
https://tvanswerman.com/2019/01/03/why-your-comcast-video-doesnt-have-sound/
Hit the Menu button on your Comcast remote control twice. Then click on Audio Setup on the Menu listings on your screen. After that, look at the HDMI sound setting. If it’s OFF, turn it to ON. Then hit the Menu button again to clear the screen. Your picture and sound should be on at this time.
HDTV channels blank video, but have audio? : …
https://www.reddit.com/r/Comcast_Xfinity/comments/7eahmo/hdtv_channels_blank_video_but_have_audio/
Seems local type stations work and have video/audio but national (like CNN or TNT or similar) don't. Just suddenly happened, as they had HD a few weeks ago. They have an RNG150 tuner. If I hit info on the TV for most of the channels it shows 1280x720/60 although a couple (like 800) show 720x480. The guide overlays just fine, it's like the box ...
Comcast basic channels non HD box trying to get it to give ...
https://forums.tomsguide.com/threads/comcast-basic-channels-non-hd-box-trying-to-get-it-to-give-me-video-on-my-samsung-hdtv.19901/
Your non-HD set top box from Comcast should have RCA audio (L/R Red/White), a Composite (Yellow) and/or Component (Red/Blue/Green) video outputs; as well as (probably) a coaxial output. Your HDTV...
Solved: ROKU Express Xfinity Stream Beta APP HD channels r ...
https://community.roku.com/t5/Channel-Issues-Questions/ROKU-Express-Xfinity-Stream-Beta-APP-HD-channels-revert-to-STD-channels-Why/td-p/715342/page/3
On 10/9 I reached out to the comcast agents that monitor reddit and started a private chat. Being at wits end that no HD channels are showing, even intermittently, I conceded and uninstalled and reinstalled the app on my Roku. Still no HD channels. Since both Rokus are somehow tied together in my Roku portal, the app was refreshed on both.
Comcast Compresses HD - No One Shocked | Audioholics
https://www.audioholics.com/news/comcast-compresses-hd-no-one-shocked
Comcast and other cable providers are compressing their HD channels up to 3:1. This means softer pictures, audio and video dropouts, and users on Internet forums exposing your bad signal for what it
HD on analog comcast. No sound | TiVo Community Forum
https://www.tivocommunity.com/threads/hd-on-analog-comcast-no-sound.360124/
I am buying Comcast service with only analog. However I am getting one HD channel 21.1 which my Tivo HD receives. I have a few questions. 1. Has anyone heard of this happening (recieving a HD channel on analog cable) 2. I have a problem in that I don't recieve the sound. Is there...
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