Fandom is mainstream now!

Fandome has been slowly but surely been creeping into the mainstream. Initially this mainly seemed to be in TV, with Supernatural playing with the 4th wall, Hawaii Five-0 going to a Comic-con lookalike and Castle referrencing fandom every opportunity it gets. But there can't be anything more mainstream than being on BBC Radio 4. When I got into the car today to go to work I had the most surreal experience. On You & Yours they were discussing Torchwood, James Marsters and Fan Conventions  (7 min. report) instead of the usual high-brow socio-political topics, strategically placed between reports on Food Labelling and Council Reserves.

How did that happen?