Back in March I spotted it and was impressed by the cunning attempt to circumvent the BBC's trademark. I did wonder about it, though, and I consulted IP-specialist-in-training Mr Simon Bradshaw about it. This man has taken a law exam under threat of rocket attack in Iraq. He is dedicated to his art, and has delivered an opinion.
I'm very grateful to him for plugging the gaps in my education - not least with a link to the actual decision in which the Trade Marks Registrar allowed the BBC to have its police box trademark over the objections of the Metropolitan Police. Favourite bit: learning in the last paragraph that the Met actually had to pay the BBC £850 for having the temerity to oppose the application.