Audio No audio on hd channels off air audio ok with non-HD channels

You will need to used a red and white cable that will connect to the (audio out) on the comcast box and then to your (in audio) on your tv.

Thanks
wbigtodd

Try to connect the ROKU player to the television directly
Make sure that the internet connection to the player is from your router
Use your television remote to select the proper input to your television
Try this and check if it works.
It should work

have you tried to change the audio settings to HDMI on tv? when u have HDMI hookd up u have to change the audio to HDMI also

on your directv box, go to menu, setup, setup again, then audio, then dolby digital on the right and turn it on. assuming you have an optical audio cable from your sat box to your onkyo.

Good evening! Go into your audio section of the Menu and make sure that SAP is off.....let me know how you did.

Need more detail - What is your TV source (directv, cable, etc,) Also - how is it connected to the Denon?

I had the exact same problem on a brand new Insignia 26 " LCD with DVD. Comcast tech was able to fix it by changing the Comcast box diagnostics. Here is what he did. Using the Comcast remote with the TV on - press power, cable, menu in that order. A comcast diagnostic srceen will appear. Select Additional HDMI options, then audio options. Change the audio options to L-PCM. Press power again to exit the diagnostics. That will fix it and you get to use the HDMI cable.

I had the exact same problem on a brand new Insignia 26 " LCD with DVD. Comcast tech was able to fix it by changing the Comcast box diagnostics. Here is what he did. Using the Comcast remote with the TV on - press power, cable, menu in that order. A comcast diagnostic srceen will appear. Select Additional HDMI options, then audio options. Change the audio options to L-PCM. Press power again to exit the diagnostics. That will fix it and you get to use the HDMI cable.

If your using a HD converter box, there is usually a blink when switching from an HD channel to a non HD channel. It is just adjusting from different pictures modes such as changing from a 480i channel/show to a 1080i channel. If this is the case, its perfectly normal.

Experience has shown that with this relatively new mode of transmission, audio levels can be quite dynamic. If your set provides it, you may try turning on "Audio Compress" or whatever the name might be. Could also be called Dynamic audio also or some such. Reason for all the hubbub is that along with HD, mixing engineers are also providing the most range for the audio dynamics as well the most video composition info in the new broadcasts...Accordianman.