The 787th episode of Doctor Who airs on BBC1 (the 89th episode since the series’ revival). Asylum Of The Daleks opens the seventh season of the revived show, and features a surprising first appearance by new series regular Jenna-Louise Coleman, whose new companion character was originally announced as debuting in the 2012 Christmas special. (The most surprising thing about this is that preview audiences keep this secret from the entire internet for several weeks.)
