A broken chameleon circuit made the TARDIS a police box
Since 1963 the Doctor has regenerated through fourteen lead actors, kept memories while swapping personalities, and flown a bigger-inside time ship stuck looking like a British police box. Guinness lists the BBC series as the longest-running—and most successful—science-fiction show on television.
Doctor Who first aired on the BBC in 1963. Its architects were Sydney Newman, C. E. Webber, and Donald Wilson. The Doctor is a Time Lord traveling space and time in the TARDIS, whose chameleon circuit failed and left the exterior as a police box. Companions—often humans—join adventures fought with ingenuity and a sonic screwdriver more than firepower. Fans are sometimes called Whovians. Fourteen actors have played the lead from William Hartnell onward, with regeneration explaining each change of face and temperament.
The original run lasted from 1963 to 1989. A 1996 Fox television film failed to restart ongoing production; the series returned in 2005 from BBC Wales in Cardiff. It was meant as family education via time travel into science and history, and first appeared on 23 November 1963 at 17:16:20 GMT—eighty seconds late because of coverage of John F. Kennedy's assassination the day before. Daleks nearly never aired: Terry Nation's script was initially rejected as forbidden "bug-eyed monsters." Color production began with Jon Pertwee in 1970; Tom Baker's eccentric Doctor later restored high ratings.
After the classic era, novels and audio kept stories alive until Christopher Eccleston relaunched the show with "Rose" on 26 March 2005. David Tennant, Matt Smith, Peter Capaldi, and Jodie Whittaker—the first woman in the role—followed under showrunners including Russell T Davies, Steven Moffat, and Chris Chibnall. Mary Whitehouse long attacked the series as too frightening for children. Guinness World Records cites both longevity and overall commercial success metrics for its "most successful" science-fiction ranking.
Source: Doctor Who
