The opening music to Doctor Who has been voted the best science-fiction television theme tune in an online poll.
The theme to the much-loved BBC series finished ahead of Red Dwarf, The X-FILES and Buffy The Vampire Slayer in a survey carried out by sci-fi website Totalscifionline.com.
Written by Australian-born composer Ron Grainer and arranger Delia Derbyshire in 1963, the iconic music was created by combining a tape loop of a struck piano string with the sound of test oscillators and filters.
Though it has been reworked several times over the years - with the current version arranged by Murray Gold - the central melody remains one of the most renowned in British popular culture.
Matt McAllister, editor of Totalscifionline.com, commented: "The poll result proves that in addition to being one of the most popular science fiction shows ever created, Doctor Who also boasts the most iconic sci-fi theme tune.
"Grainer and Derbyshire's theme manages to convey the outlandish quality of the show and is instantly recognisable to fans throughout the world just by its opening bars."
The top ten in the Totalscifionline.com poll were:
1) Doctor Who
2) Red Dwarf
3) The X-Files
4) Buffy the Vampire Slayer
5) Star Trek
7) The Twilight Zone
8) Battlestar Galactica
9) Quantum Leap
10) The Hitchhikers Guide to the Galaxy