BBC doesn't get web video
The BBC is using Real Video and Windows Media on its web site, which means that you either have to have Real Player (I wouldn't touch anything by Real after downloading a version of their player years ago which was basically adware) or Windows Media Player installed.
I don't think they got the memo:
It's the end of 2006 and the online video format wars are over. Flash won. Please use Flash video on your web site to provide a hassle-free viewing experience to the widest possible audience.