I am having audio dropouts which happen periodically where the sound with cut out for half a second. I am connecting using the Vizio Soundbar (model SB2920-C6). I have it connected via audio optical cable. I have even replaced the cable and still have the same issue. The Vizio Soundbar worked fine with my 27" Samsung, so I am thinking this may be an issue with the TV. I have gone through and checked all the settings. Also, tried connecting the soundbar using the other cables but none of them are recognized by the soundbar. I have also tried upgrading the firmware but its telling me there are no updates. I have tried just about everything and was hoping I can get some help here before I return the TV. If anyone has had any similar problems and can help me resolve this issue I would greatly appreciate it.