The cast of the television series MythBusters perform experiments to verify or debunk urban legends, old wives' tales, and the like. This is a list of the various myths tested on the show, as well as the results of the experiments (the myth is busted, plausible, or confirmed).

• Original air date: February 2, 2005

In this episode, Adam and Jamie relived Buster's finest moments, from his introduction in Exploding Toilet to his ultimate demise (supposedly in Ming Dynasty Astronaut), and showed the construction of the new "Buster 2.0". These moments include:

• Exploding Toilet
• Barrel of Bricks
• Hammer Bridge Drop
• Raccoon Rocket
• The Mad Trombonist
• Forest Fire Scuba Diver
• Elevator of Death
• Boom-Lift Catapult
• Plywood Builder
• Ming Dynasty Astronaut

• Original air date: February 9, 2005

In this episode, Adam and Jamie competed in a series of arguably ludicrous tests and competitions to determine which of the two was the "Ultimate MythBuster". These competitions tested their ingenuity, constitution, and courage to see just how far they were willing to go to claim the title of "Ultimate MythBuster".

• Original air date: February 16, 2005

• Original air date: February 23, 2005

• Original air date: March 2, 2005

• Original air date: March 9, 2005

This was the final episode in which the Build Team worked from their M6 workshop.

• Original air date: March 16, 2005

In this episode, outtakes and other deleted scenes were shown, which included some failed experiments or extra experiments that had to be trimmed out of the show for time and relevancy reasons. Clips edited out of shows previously aired include:

• "Breakstep Bridge revisit", the short revisit of the original myth. The revisit originally aired on "Myths Revisited", but it was cut from the US version.
• Ping-Pong Salvage, in which a sea otter managed to interfere with the experiment by stealing a ping-pong ball from the Mythtanic II.
• Plywood Builder, where Jamie had trouble with working with the zip line and Christine flat out refused to do the zip line.
• Chinese Water Torture, where Tory and Scottie each had a turn on the torture rack—Scottie with a blindfold and head restraint, and Tory with a head restraint, shackles, and a stream of iced water. In the aired version of this myth, Kari and Adam went "under the drip", and it was found that Chinese water torture is extremely effective—Adam completed his turn without incident (but was not restrained in any way), while Kari, who was restrained, requested that her turn be cut short when she began to suffer an emotional breakdown.
• Buried Alive, where Adam and a producer each tried the experiment. Neither was able to match Jamie's time in the coffin.
• Cement Mix-Up, where Tory tried to remove concrete from Twister I with a jackhammer, and only barely filled the bottom of the bucket after an hour of work.
• Needle in a Haystack, where Adam, before settling on the Needlefinder 2000, considered using a sieve, a metal detector, and a bloodhound to find the needles.
• Escape From Alcatraz, where the MythBusters theorized that the escapees used the tides to go to a different location. The makeshift raft crafted and crewed by the MythBusters team successfully made it across the bay and made it to the Marin Headlands. They declared the myth plausible because the fate of the prisoners remains unknown. A portion of the scale tests (cut for time but later shown here) also shows that belongings of the prisoners' found in the bay afterwards could have been released by the prisoners and washed up where they were found through strategic use of the bay's tides to throw the authorities off their trail. Adam and Jamie explored the idea that the escape raft washed ashore on Angel Island after making it to the Marin Headlands as a way to throw the FBI off the convicts' trail. Using a scale model of the San Francisco Bay area, the tide could have washed the raft onto Angel Island if released from the Marin Headlands, but as with their theory of how the escape could have succeeded, no concrete evidence existed to prove or disprove the theory.
• Carried Away, in which the Build Team used a pressure chamber to determine the height above sea level at which party balloons would pop. The balloons burst at an altitude between 23,000 and 25,000 ft (7,000 and 7,600 m).
• Eelskin Wallet, in which Adam and Jamie tested neodymium magnets to see whether they had the desired effect. The data were successfully erased in just one swipe. This segment was left out due to them not being able to properly assess the power of the magnets. The magnetometer used in testing the strengths of the other items ceased functioning when a neodymium magnet was held near it.
• Bug Bomb, in which Adam and Jamie tested whether sawdust, flour, straw, or fake smoke could have also caused an explosion if a spark was nearby. None of the materials tested could fully ignite, though sawdust and flour did burn slightly, and reports of flour and saw mill explosions have been confirmed.
• Elevator of Death, in which the elevator expert answered questions on whether pressing elevator buttons can make the elevator move faster, whether someone can be decapitated by a closing elevator door, and whether zero gravity can be attained by jumping in an elevator. All three questions were answered in the negative.

Six of the deleted segments, titled as the "Lost Experiments", are available on the Discovery Channel website.

Original myths that were completely edited out include:

• Original air date: March 23, 2005

From this episode, the Build Team operates from their new M7 workshop.

Also featured in this episode is the first test of Buster 2.0, built during the Buster special, as well as the final test of "Earl the MythBusters Caddy," which was dropped from a crane to fulfill a promise to its previous owner that it would be destroyed on the show.

While preparing Earl to be dropped from the crane, Scottie encountered a problem in that the rear windows needed to be opened to loop a chain through the passenger compartment, but the mechanism was jammed. She therefore took the chance to test out a mini-myth:

• Original air date: March 30, 2005

This episode marks the final appearance of Mythtern Christine Chamberlain.

• Original air date: April 6, 2005

This episode explored some of the MythBusters' favorite stores and vendors they use when buying supplies for the show. The episode also included a tutorial on how to make ballistics gel by Adam and Kari (which is frequently used in the MythBusters' experiments), and it revealed the source of the often referenced "Little Black Book", the Pocket Ref.

• Original air date: April 27, 2005

This episode took a behind-the-scenes look at the show. It featured insights from and interviews with Adam, Jamie, Kari, Tory, and producer Peter Rees about various aspects of MythBusters, as well as explored personal issues between the hosts.

• Original air date: May 11, 2005

The MythBusters test some of the pervasive myths that are created by Hollywood, as well as recall some of their past Hollywood-inspired myths. This special also marks the debut of Grant Imahara as the third member of the Build Team, though the next two regular episodes ("Breaking Glass" and "Jet Pack") did show Scottie Chapman in that capacity instead.

• Original air date: May 18, 2005

• Original air date: June 9, 2005

This episode marks the final appearance of Scottie Chapman as a Build Team member.

• Original air date: June 22, 2005

• Original air date: July 13, 2005

• Original air date: July 17, 2005

As part of Discovery Channel's Shark Week (which Adam and Jamie hosted in 2005), the MythBusters test myths relating to the movie Jaws with the help of a "ShaRammer" designed to simulate the force of a great white shark. This is also the first MythBusters special to run for two hours rather than one. More recent reruns have tended to show a version edited down to one hour. The episode was also referred to as the "Shark Special" in the episode "22,000 Foot Fall".

The sequel, "Shark Week Special 2", aired in 2008.

• Original air date: July 27, 2005

This was the first episode in which the entire hour was devoted to testing a single myth.

• Original air date: August 3, 2005

• Original air date: August 10, 2005

• Original air date: October 12, 2005

This episode is the second episode where the MythBusters team focuses on retesting earlier myths, based on fan reaction (the first is "Myths Revisited"). Grant Imahara is also introduced in this episode.

• Original air date: October 19, 2005

• Original air date: October 26, 2005

This was the second episode in which the entire hour was devoted to testing a single myth. Because the myth dealt with the making of explosive and/or dangerous materials, the ingredients used to make nitrous oxide and gun cotton were censored by substituting animal sounds for the chemical names. This myth was revisited in Salami Rocket.

• Original air date: November 2, 2005

• Original air date: November 9, 2005

• Original air date: November 16, 2005