Which allows me to watch what I want, when I want using xbmc on my TV thank-you-very-much.
I really don't get why the BBC think I would want to stream to my Mac, when I can already download whatever I want and watch it on the Mac, the TV, the iPod or wherever. OK, most people probably don't realise this yet but this is the technology they are competing with in my world.
And if I want to keep the episode of Space Pirates or some film which has been aired on terrestrial TV for the kids to watch at some point in the future, I don't want the BBC deciding that I've kept hold of it for more than 7 days and therefore they have the right to delete it from my hard drive. This is a step back from what I was able to do (and almost everyone did) using a VCR.