TV show Big Brother Live feeds problems with Flash Player

I've tried everything and nothing works.   The live feeds load up and there are 4 cams to watch.  The problem I'm having is the sound.  I'm running windows 7 on a 64 bit system.  I have an internet connection that is 50mbs. I've checked all of that and its all fine. So here is the problem.... The sound is back feeding thru out the player on the live feeds from CBS show Big Brother. here is a scenario... If I switch to say camera 3 I can hear them talking on camera 3 but also from Camera 1.  If I mute the player with mute button, the camera 1 feed still can be heard.  Plus the people are not synced correctly as their lips will move but sound comes later like lag.  I don't know how to fix this...CBS techs say its in Flash player and to try different browser than IE 10.  I tried different browsers(Chrome, Safari, Firefox)to no avail...its somehow in the flash player which I have reinstalled numerous times....HELP!