The DSC Show, formerly The Dawn Patrol and The Dave, Shelly, and Chainsaw Show (DSC), also known simply as Dave and Chainsaw, was a long-running morning radio show in the San Diego, California, area. Broadcast on weekday mornings on San Diego's famous KGB-FM, the show is named for its main hosts: Dave Rickards (sic) and Cookie "Chainsaw" Randolph, known as the "Dean of American Sportscasters". The show originated on April 1, 1990, with Shelly Dunn as a member of the trio; she retired from broadcasting in July 2018 and was replaced by Emily Jane Maguire, the show's then-producer.

The format of the show combined humor, parodies, news, and skits. The show's bawdy humor and irreverent attitude, described as "raucous and often hilarious", sometimes sparked controversy. That said, the show was marketed as "San Diego's most dependably hilarious morning radio show".

In addition to the radio programming, the show produced three comedic films starring Denver Dave, Shelly, and Chainsaw. The group also released 18 annual "Best of" CDs featuring the show's regular cast members. The proceeds from the CDs and DVDs, usually released around Christmas, supported the show's charity fund that assisted San Diego residents in need.

The Dave, Shelly, and Chainsaw Show debuted in 1990, on KGB-FM as The Dawn Patrol. In 1992, the group moved to Rock 102 and changed the show's name to The Dave, Shelly, and Chainsaw Show, often referred to as simply DSC. In 1996, both radio stations were purchased by Jacor Broadcasting (which was later bought by Clear Channel). At that time, the show moved to 105.3 KIOZ (formerly KCBQ) . DSC returned to KGB in 1997.

In January 2010, Clear Channel abruptly canceled the show, with executives citing an "inability to reach an agreement" with the performers. The cast claimed that no agreement was even attempted.^{[further explanation needed]} Fans of the show protested and staged rallies, to no avail. The show remained off the air until August 2, 2010, when it was picked up by Jack 100.7 FM. The show initially featured Rickards and Randolph, without Dunn, who was still under contract with Clear Channel. 100.7 dropped DSC in the summer of 2018, after which the show returned once again to KGB.

Co-host Shelly Dunn retired in July 2018.

In addition to Rickards, Maguire, and Randolph, the show included a supporting cast consisting of Chris Boyer, percussionist and comic foil; producer Sarah Beebe, news producer who also screened listener calls; and Elaina Smith, affectionately dubbed the "Mexican Leprechaun" by other members of the show. While Dunn was in a contract dispute with Clear Channel, Smith substituted for Dunn on air. Former cast members have included: Nina Reeba (known as Ruth 66) with weather and traffic reports; sports producer David "Bromo" Abromowitz; Shelly Brown (nicknamed "Chucko" to avoid confusion with Shelly Dunn); and Anna Blake, who took over news production and call-screening when Sarah filled in for Emily (see below). ^{[citation needed]}

On July 26, 2022, Emily Maguire was fired from iHeartMedia and removed from the DSC Show. ^{[citation needed]}