sounds to me like you've got secondary audio channel on (SAP), sometimes it's described audio, sometimes French, in the US it's commonly Spanish language, not all channels use it... on your remote try hitting the letter (D) and see if it says "described audio on/off depending on the box and settings might here a woman softly say "described audio is on(or off)" The D is mapped to quick toggle it on off, I've had dozens of clients inadvertently hit it and just assumed the tv got Dummer (or tv actors weren't acting enough requiring the described actions as things went described, but different channels use it differently with many not using it at all, could be Citytv switching back and forth from feed local to US or different region depending how they broadcast why you're only seeing it seemingly switcing to french or you don't watch enough channels to notice it, when SAP isn't avail it simply outputs what is but will revert to it when the broadcaster's/channel feeds it. just a thought and worth a look
CF
