How can I tell if a programme has Audio Description?

There are a couple of ways to do this. 

The first way is to look at the programme description in the TV Guide.  Under the description itself, there should be an icon with AD on it.  If that is the case, then the programme will have Audio Description.

The other way to identify programmes with Audio Description is our Audio Beep Assistance, which will make a sound of two beeps when a programme has audio description available, and three beeps if the programme is already being watched.

To turn on the Audio Beep Assistance, head Settings, then to Accessibility & Language where you will have the option to turn Audio Beep Assistance On or Off.