just now started to muffel the sound after

My sanyo tv works fine but it just now started to muffel the sound after a few mins and once in a while it won't show the

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Hi,

More information is needed for you to get a reasonable answer.

Model number of TV?

Is the audio output the TV speakers or an external audio system?

What is the signal source e.g. TV antenna or a "box" of some description?

If a "box" then have you tried a different TV input or input type e.g. HDMI or Component video etc?

If an antenna have you tried connecting a dvd player to the TV and see what happens to the audio when using it?

What have you tried?

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