Pointlessness

I just stumbled across this on the BBC iplayer website, while I was looking for Planet Earth.

Can anyone please explain to me the point of this being on there!? Surely the very fact I'm there suggests I know about the magical iplayer service.

Also - why use that advert at all when the content is not even on there?! The Top Gear iplayer advert actually makes sense as you can get Top Gear from iplayer...