Mark Larson Media Services, Mark Larson is one of San Diego's most popular media personalities. A talk radio host in Southern California since 1976, he's now heard weekday mornings on AM 760 KFMB from 10AM - Noon weekdays. His show is also available on 760kfmb.com online. Radio and Records named him one of only twelve Local Legends in Talk Radio. Mark is Chairman of the San Diego Air & Space Museum and member of the Reagan Ranch Board of Governors. He served eight terms as President of the San Diego Radio Broadcasters Asso.