Facing TV Problems? Ask a TV Technician.
How did you hook it up, Frank?You need to use the optical (fiber optic) cable, not the red/white.
You may also need to go into the tv setup menu and disable/turn off the tvs internal speakers, and also to set the audio output mode/format to pcm (stereo) rather than dolby/digital.
If none of that works, you can bypass the tv entirely and just plug the soundbar directly to your source device (cable/satellite box, etc), though you may have to make a comparable pcm/stereo setting change on that box too.
Thank you, Frank.