i have c-band satellite with a 4dtv receiver and i have a viewsat platinum slaved to the 4dtv. my question is audio on the tube channel on amc3. i know the audio is in ac3 format i can receive other ac3 channels on the other sats but not the tube. i put in the audio and video pids but still i can not get audio to pass on this channel. any help woul be greatly apreciated. i am new to fta.