Apologies, I didn't check and took NOM's comment as I read it - I have posted BBC links before which have failed, so assumed that was the case again and as you say they do play.
I don't usually watch these sort of programmes - only tuned in because of the cast and title Happy Valley. What a drama! Even my husband is hooked. Got even more of a surprise to see one of the cast was at school with my daughter - even listened to him read in primary school. Can't wait for the next episode.