WHAT NORMAL 4.2.0 hd receiver Are you using ?
i'm watching FIGHT Network 15W now with no Audio issues
TM5402 M3 HD 1.46p patch from Aug 22nd 2016
TBS DVB Card/Box requires LAV Audio Codecs for Audio to work
not sure what 4.2.0 hd receiver you are having issues with maybbe it just do'nt support the required audio codecs like Technomate HD boxes support ?