The latest season of the time-travelling Doctor is all wrapped up, so what should you be doing while you wait for his next adventures? Watching reruns with a sprinkling of social media, apparently. BBC America will soon be rebroadcasting season 9 as "Doctor's Notes," which are essentially regular episodes with fan-made commentary layered on top. They'll include quirky tweets, rambling Tumblr posts, exceptional Instagram fan art and Facebook babble. The BBC says it'll then be coupling these with its own facts and storyboards to keep longtime fans entertained.