Mark Thompson was, for over 25 years, one half of the team of Mark and Brian, hosts of the iconic morning radio show on KLOS-FM in Los Angeles. Their show was a mix of comedy and music, and their personalities quickly became woven into the fabric and car culture of the city. Despite initial resistance from the audience, their show became number one in L.A. and was widely imitated. They earned a star on the Hollywood Walk of Fame, and a place in the Radio Hall of Fame. The Mark and Brian show was a testament to the once-upon-a-time power and intimacy of radio, and Thompson shares how that legacy evolved.