KPO -- World Series by Radio Today! -- October 18, 2022

San Francisco Examiner, 04-October-1922

San Francisco radio station KPO began broadcasting 100 years ago today, on 17-April-1922. I remember reading about the 50th anniversary of successor KNBR in the Chronicle. The photos of the early studios caught my attention.

The original KPO studios were in the Hale Brothers department store at Fifth and Market. Hale Brothers owned the station. In 1929, the station moved to the Hale Brothers annex, seen behind the corner store. In 1927, the station became an early affiliate of the NBC Red Network. NBC acquired KPO in the 1930s and changed the call letters to KNBC. Later, they wanted to use the call sign for a Los Angeles station and changed the San Francisco station to KNBR. KNBR currently carries the broadcasts of San Francisco Giants games.

In 1922, KPO carried broadcasts of the World Series between the New York Giants and the New York Yankees.