^^ You mean you have set favorite language to Hindi and when you switch to History TV18 HD, Nat Geo HD, etc channels, you still get Hindi audio???
If yes, can you share some settings such as sound settings (PCM or DD or DD+), etc.
Actually my prob was de opposite,i had set English as the favorite language but was getting Hindi when I switch to history Tv 18hd,nat geo wild HD etc channels,but aft master reset it was resolved.i hav set pref audio for HDMI as Dolby digital,audio for spdif as Dolby digital