We have a new Sony XBR55A8H and Sonos sound bar.   Audio quality is excellent with all live shows and most recorded ones but for some recordings the audio, particularly voice, is badly muffled to the point of inaudibility.  This muffling occurs when we use either the TV speakers or the sound bar.  Is this an issue with the TV itself, the TV box or the compatibility between the two?  The recordings play correctly on another, older, TV.