first i want to say many thanks for your work!!!

now my question:
On the satellite HISPASAT, TV Cabo provider, there are four channels (RTP1,RTP2,SIC,TVI) which only have sound if we press AUDIO, choose the language, in this case PORTUGUESE, and only, in this way, we will have sound. It happens with all the images.
What am I doing wrong?
Best regards.