Other appearances
On television, Burton played a visitor to Fantasy Island, guest starred on The Love Boat, was a participant in Battle of the Network Stars, and a guest of The Muppet Show's televised premiere party for the release of The Muppet Movie. He was also frequent guest on several game shows, including a celebrity guest on the Dick Clark-hosted $25,000 and $100,000 Pyramids, from 1982 until 1988.
Burton also appeared in several television movies. He portrayed Detroit Tiger Ron LeFlore in One in a Million: The Ron LeFlore Story (1978), helped dramatize the last days of Jim Jones's suicide cult in Guyana in Guyana Tragedy: The Story of Jim Jones (1980), appeared the Jesse Owens biographical film The Jesse Owens Story (1984), and was in the nine-year-old Booker T. Washington biographical film Booker (1984).
In 1986, he appeared in the music video for the song "Word Up!" by the funk/R&B group Cameo.
In 1987, Burton played Dave Robinson, a journalist (sports writer), in the third season of Murder, She Wrote, episode 16 – "Death Takes a Dive", starring Angela Lansbury as Jessica Fletcher.
In 1992, a clip of Burton's voice was sampled by DC Talk for the track "Time is..." on their album Free at Last. The sample is at the very end of the song, in which Burton can be heard saying: "Whoa, wait a minute." He has also lent his voice to several animated projects, including Kwame in the cartoon series Captain Planet and the Planeteers (1990–1993) and The New Adventures of Captain Planet (1993–1996), Our Friend, Martin (1999), Family Guy, Batman: The Animated Series and Gargoyles. Burton is on the audio version of books such as The Watsons Go to Birmingham: 1963 by Christopher Paul Curtis. Burton has been cast as voice actor for Black Lightning in Superman/Batman: Public Enemies DVD.
In the 2000s, Burton made appearances in such sitcoms as Becker. He also portrayed Martin Luther King Jr. in the 2001 film Ali.
In 2001, Burton also was the strongest link in the special Star Trek episode of The Weakest Link. He defeated his final opponent Robert Picardo and won $167,500 for his charity, Junior Achievement of Southern California, a record for the show at that time and the largest amount won in any Celebrity Edition of the show (it was later surpassed by a $188,500 win in a "Tournament of Losers" episode).
Burton is the host and executive producer of a documentary titled The Science of Peace, which was in production as of 2007. It investigates the science and technology aimed at enabling world peace, sometimes called peace science. The film explores some of the concepts of shared noetic consciousness, having been sponsored in part by the Institute of Noetic Sciences.
He appeared in an April Fool's 2009 episode of Smosh pretending to have taken over the channel and making various edits at popular Smosh videos.
He makes occasional appearances on This Week in Tech, where he is a self-proclaimed "nerd", and also participated in the Consumer Electronics Show 2010.
In 2010, Burton made an appearance on Tim and Eric Awesome Show, Great Job! as the ghost of himself in the episode "Greene Machine". In February 2011, he made an appearance as himself on NBC's Community in the episode "Intermediate Documentary Filmmaking", and then again in January 2014's "Geothermal Escapism".
Burton has appeared as a fictionalized, humorous version of himself on The Big Bang Theory, first appearing in the episode "The Toast Derivation", in which he almost attends a party thrown by Sheldon (before swearing off Twitter), in November 2012 in the episode "The Habitation Configuration", in which he appears on "Fun With Flags" in exchange for lunch and gas money, and again in the November 2014 episode "The Champagne Reflection", in which he returns for the 232nd episode of "Fun With Flags" in exchange for Sheldon deleting his contact details.
In 2012, he had a recurring role as dean Paul Haley on the TNT series Perception. For the second season (2013), he became part of the regular cast.
In 2014, he had a guest appearance in an introduction section for the 200th episode of Achievement Hunter's show, Achievement Hunter Weekly Update (AHWU). In May 2014, he appeared as a guest on the YouTube channel SciShow, explaining the science behind double, tertiary, and quaternary rainbows. Late in 2014, he had another guest appearance on a 24-hour Extra Life, a fundraising organization for Children's Miracle Network hospitals, stream by Rooster Teeth. Burton has also taped a recycling field trip for YouTube.
In November 2020, he appeared as himself on The Eric Andre Show. His segment was a callback to Lance Reddick's interview (2013) in which he mentioned LeVar by name and dressed as an amalgam of Kunta Kinte and Geordi La Forge.
Burton served as a guest host on Jeopardy! from July 26 to 30, 2021. This came after a petition asking the show's producers to select him was signed by more than 250,000 fans. The ratings during his appearance were below average due to tapering audience curiosity and forced viewership competition with NBC's coverage of the 2020 Summer Olympics in Tokyo, which trampled syndicated shows across the board. He has been very critical of the show's guest host process, stating that the show's then executive producer Mike Richards expressed disbelief about Burton wanting the job. According to Burton, Richards also claimed to have no interest in hosting the show himself even though this was disproven by later events. However, he would later say that the experience taught him that there is a "perfect nature of all things".
In June 2022, Burton hosted the 94th Scripps National Spelling Bee.
Burton also teaches the "Power of Storytelling" in the MasterClass.