I've been following Twitter eagerly for the release date of Doctor Who series 13 (Jodie Whittaker's last!) and suddenly today all Doctor Who social media websites (Facebook, Instagram, etc) are blank, not just Twitter! Is this a "prank" marketing strategy on the part of BBC to herald the release of series 13? Or have Daleks been messing with the internet? 
Any BBC insiders here who might shed some light?