File:Be Sure Highlight - Episode 4 Doctor Who BBC America

Description
"When I pull that lever, I'm never quite sure what's gonna happen."

New episodes of #DoctorWho premiere Sundays at 8pm on BBC America. Get caught up with episode 4 On Demand, BBCAmerica.com, and the BBC America app at bit.ly/ArachnidsInTheUKFullEp

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