SERIES PREMIERE: Just as many early videotapes of Johnny Carson hosting NBC’s The Tonight Show in the 1970s and early 1970s were erased for reuse or trashed to save storage costs, many early TV shows in England suffered a similarly maddening and insensitive fate. One of them was the 1960s series Doctor Who, where some key early adventures were so disrespected, they had their master negatives destroyed. But audio recordings, photos, and some film clips survive – and from them, modern filmmakers have joined forces to recreate one of the 1964 adventures, the six-part Power of the Daleks, in animated form. This new production shows up on BBC America 50 years after the original was televised on the BBC, and it preserves a key part of this still-running narrative’s history. It details the regeneration of the first Doctor, played by William Hartnell, into the second, Patrick Troughton – and thus was the first example of the leading-man relay race which is still running in 2016. The story, which will be shown in animated form on BBC America over the next six weeks, features companions Polly and Ted (Anneke Wills, Michael Craze), and, of course, the dreaded Daleks. This new version is produced and directed by Charles Norton, with animation designed by comic book artists Martin Geraghty and Adrian Salmon.