Sayers Question

When I asked him what he'd like for Christmas, my dad said that he'd seen a Dorothy L. Sayers-related something in August that he thought he'd like, but couldn't remember what it was he'd seen. The only details I have are: 1) he saw publicity material for it, not the thing itself; 2) he's fairly confident that the reason he saw the publicity material was that whatever-it-was was either new or forthcoming at the time; 3) it might be a DVD but he's not really sure. From my own knowledge, I think he's more likely to have seen publicity material in a shop, on the high street, or on TV than on the internet, and he almost certainly saw it in the UK (there is a faint possibility that he saw it in France).

I'm stumped. Anyone have any ideas?