MythBusters is a popular science television program produced by Australian firm Beyond Television Productions originally for the Discovery Channel in the United States. The series has since been picked up by a number of international broadcasters, including SBS in Australia, and BBC2 in the UK. The series stars American special effects experts Adam Savage and Jamie Hyneman, who use basic elements of the scientific method to test the validity of various rumors, urban legends, myths and news stories in popular culture.

Filming for MythBusters is based in San Francisco, California, though some elements of production are done in Artarmon, Australia. Planning and some experimentation usually takes place at the cast's workshops; experiments that require more space or special accommodations are filmed on location, typically around the Bay Area. During the second season, several members of Savage and Hyneman's team ("The Build Team") were split off into a second team of MythBusters, and now typically test separate myths from the main duo.

Initial pilots for the show were first created for the Discovery Channel under the title Tall Tales or True by producer Peter Rees of Beyond Productions in 2002. Discovery then commissioned three additional pilot specials. Jamie Hyneman came to the show through Rees, who had previously interviewed him for his appearance on BattleBots. Adam Savage, who had worked with Hyneman in commercials and on BattleBots, was approached by Hyneman to help co-host the show because, according to Savage, Hyneman felt himself too uninteresting to host the show on his own.

In July 2006, an edited thirty-minute version of MythBusters began airing on BBC Two in the UK. The episodes shown on the European Discovery Channel sometimes include extra scenes not shown in the U.S. version (some of these scenes eventually make their way into "specials", such as "MythBusters Outtakes").