Doctor Who, a legendary British science fiction TV classic from BBC. Created in 1963, the programme depicts the adventures of the Doctor, a character shrouded in mystery. All that was known about him in the programme's early days was that he was an eccentric alien traveller of great intelligence also known as a Time Lord, exploring time and space in a time machine called the TARDIS (Time And Relative Dimension) in the shape of a 1950s-style British police box but is bigger than it looks. Accompanied by different companions over the years, he explores time and space, solving problems, facing monsters and righting wrongs.
Doctor Who originally ran for 26 seasons on BBC One, from 23 November 1963 until 6 December 1989, despite its cancelation, it was followed by a series of novels and audio dramas that proved the franchise was still alive and that its loyal fanbase was still running wild. A 1996 US TV movie followed, a co-production between Universal Television, BBC Television, BBC Worldwide, and the Fox Network that was intended to be a pilot of a proposed American produced continuation of the Doctor Who series. The movie failed to achieve the expected ratings in the US but was a major success in the UK. Then BBC revived the franchise on March 25th 2005 and is still going strong. Doctor Who is the longest-running science fiction television show in the world as listed by Guiness Book Of World Records.
The haunting SCIFI sound of the Doctor Who theme was one of the first electronic music tunes made for television, a year before the Moog synthesizer was invented.
The show also had a unique set of monsters, some look downright scary and some looked cheesy and some looked downright silly but the 2 that really stood out were the Daleks and the Cybermen. The Daleks are organisms from the planet Skaro, integrated within a tank-like mechanical casing. The resulting creatures are a powerful race bent on universal conquest and domination, utterly without pity, compassion or remorse as all of their emotions were removed except hate. Their most famous catchphrase is "EX-TER-MI-NATE!", with each individually having a frantic down right scary electronic voice. The Cybermen, a race of cyborgs that were originally a wholly organic species of humanoids originating on Earth's twin planet Mondas that began to implant more and more artificial parts into their bodies as a means of self-preservation. This led to the race becoming coldly logical and calculating, with emotions usually only shown when naked aggression was called for.
However none of them posed as much as a greater foe to the Doctor as the Master, a renegade Time Lord that served as the Doctor's polar opposite, a Professor Moriarty to the Doctor's Sherlock Holmes using his powers of time travel in a quest for universal domination, with the Doctor being the only one who stands in his way. It later turns out that both the Doctor and the Master were once close friends, only to have their friendship come to an end to due one fateful day on their home planet Gallifrey when the Master at the age of eight, looked into the entire Time Vortex as part of a Time Lord initiation ceremony known as the Untempered Schism. It was stated that looking into the vortex causes some to be inspired, some to run away (which the Doctor did), and others to go mad; it is implied that the latter is what happened to the Master.
A unique and important theme of the show's legacy is Regeneration, a biological ability that allows the Doctor, either old or mortally wounded to undergo a transformation into a new physical form along with a different personality. This was introduced when William Hartnell, the actor who originally played the Doctor was having health problems and was becoming difficult to work with so in the fourth season, it was decided to replace the old doctor with a younger version of himself. The Doctor had already been established as an alien, the character could die and return in a new body. It was also suggested that the Doctor could do this "renewal" regularly, transforming from an older man to a younger one. This would allow for the convenient recasting of the role when necessary. The Doctor's first regeneration is considered one of the most revolutionary and memorable scenes in UK Television history, while the fourth Doctor's regeneration is considered one of the most dramatic and most heart felt regenaration among not just Doctor Who fans but among UK viewers as well, due to the fourth Doctor's popularity.
Canonically, The Doctor went threw 10 different personas:
First Doctor - William Hartnell
Second Doctor - Patrick Troughton
Third Doctor - Jon Pertwee
Fourth Doctor - Tom Baker
Fifth Doctor - Peter Davison
Sixth Doctor - Colin Baker:
Seventh Doctor - Sylvester McCoy (My personal favorite doctor)
Eighth Doctor - Paul McGann
Ninth Doctor - Christopher Eccleston
Tenth Doctor - David Tennant
I personally prefer the classic Doctor Who series over the current series.