Join BBC America for an exclusive Supernatural Saturday screening of Doctor Who and Orphan Black. BBC America's new Supernatural Saturday lineup launches Saturday, March 30 with Doctor Who at 8/7c, Orphan Black at 9/8c, and The Nerdist at 10/9c. Doctor Who will kick off the screening with Steven Moffat's new episode “The Bells of St. John,” the first of eight epic new episodes starring Matt Smith and his new companion Jenna-Louise Coleman. Then, catch the premiere episode of BBC America's new original series Orphan Black. Tatiana Maslany portrays Sarah, an orphan and outsider whose life changes dramatically after witnessing the suicide of a woman who looks just like her. She takes her identity, her boyfriend, and her bank account. But instead of solving her problems, the street-smart chameleon is thrust headlong into a deadly conspiracy. Please note: Doctor Who is TV-PG and Orphan Black is TV-MA.