Doctor Who is not in the Cw’s ‘Crisis on Infinite Earths’.  But according to this new trailer, The Doc is having her own crisis, and it starts on New Year’s Day…  This is for all you Whovians out there.  It’s time to get back in the Tardis…… Season 12 starts on January 1st, with the second part of that episode arriving on January 4th, on BBC and BBC America.