last night I watched a recording of 'Homeland' and was irritated to discover a running commentary of what was on screen. I've had this problen before but thought I had sorted it. I went to Menu;Settings;Language;Audio Description.
I am at a loss to understand why I had a running commentry when Audio Description is clearly marked 'disable'. Anyone got an explanation? Thanks.

Presumably you were time slipped in which case this is a known bug. You can press Exit to get rid of the AD temporarily. Turn AD on then off while tuned into that channel to get rid permanently on that channel.