If you’re behind on some of your favorite BBC shows, you may want to block out some time for binge-watching in the next few weeks. The contracts that allow Netflix to stream a handful of popular shows from the British Broadcasting Corporation are set to expire on Jan. 31. That means if Netflix doesn’t hurry up and ink a new deal, shows like Doctor Who, Luther, Top Gear and others will be removed from the streaming service. Enjoy it while it lasts, Whovians …