Burbank is a city in Los Angeles County, California, United States. The estimated population in 2007 was 107,921. Burbank is located in two distinct areas, with its downtown, civic center and key neighborhoods nestled on the slopes and foothills that rise to the Verdugo Mountains, and other areas located in flatlands at the eastern end of the San Fernando Valley, 12 miles (19 km) north of downtown Los Angeles. Billed as the "Media Capital of the World," many media and entertainment companies are headquartered or have significant production facilities in Burbank, including Warner Bros. Entertainment, The CW Television Network, Warner Music Group, NBC Universal, The Walt Disney Company, Cartoon Network, Viacom, Nickelodeon and PBS. At one time it was referred to as "Beautiful Downtown Burbank" on Laugh-In and The Tonight Show Starring Johnny Carson.