The installment of the sci-fi program was notable as Patrick Troughton's debut as the Doctor, but the master negatives for it were destroyed in an archive purge in 1974 and no complete film recordings are known to have survived.
Original audio recordings, photographs and film clips will be used to refurbish the episode, which is to air this fall.
"Fifty years after its inception, Doctor Who continues to be a global phenomenon that perpetually re-animates itself -- literally, right now," Sarah Barnett, president of BBC America, said in a statement. "The Power of the Daleks is the latest uniquely creative storytelling to spring from the extraordinary mythology of the Doctor Whoworld -- there are only a handful of global franchises that have the depth to evolve in this kind of way. We are so proud to present this work to our BBCA Doctor Who fans, who we think will go crazy for this reverent, yet shockingly re-invented, 'mash-up.'"read more