This embedability ticks off BBC Web Principle Number 13:
13. Let people paste your content on the walls of their virtual homes.
However, come next week the video will no longer work (I hope it breaks gracefully) since the BBC removes programmes from the Web 7 days after broadcast - even debates from the House of Commons, where there are zero rights issues.
This breaks BBC Web Principle Number 8, which states:
8. Make sure all your content can be linked to, forever.
This is a shame, but I suppose justifies the Principle's implicit order of importance, since being able to embed something from the BBC is moot if said something then gets deleted by the BBC after a few days. This is the Web. Stuff should persist.
Ah well, it's progress nonetheless. As is the quietly-revolutionary-if-about-5-years-late bbc.co.uk/programmes, offering a permanent page for every episode of every BBC programme, and which now also embeds iPlayer media for as long as its available after broadcast. (Thanks Tom!)