The Green Hornet first aired January 31, 1936, on WXYZ, the same local Detroit station that originated its companion shows The Lone Ranger and Challenge of the Yukon. Beginning April 12, 1938, the station supplied the series to the Mutual Broadcasting System radio network, and then to NBC Blue and its successors, the Blue Network and ABC Network, from November 16, 1939, through September 8, 1950. It returned from September 10 to December 5, 1952. It was sponsored by General Mills from January to August 1948, and by Orange Crush in its brief 1952 run.
Distinguished by its use of classical music for themes and for bridges between scenes, The Green Hornet was "one of radio's best-known and most distinctive juvenile adventure shows". The series detailed the adventures of Britt Reid, debonair newspaper publisher by day, crime-fighting masked hero at night.
"With his faithful valet Kato, Britt Reid, daring young publisher, matches wits with the Underworld, risking his life so that criminals and racketeers within the law may feel its weight by the sting of the Green Hornet!"
One relatively minor aspect of the character that tends to be given limited exposure in the actual productions is his blood relationship to the Lone Ranger, another character created by Striker. The Lone Ranger's nephew was Dan Reid. In the Green Hornet radio shows, the Hornet's father was likewise named Dan Reid, making Britt Reid the Lone Ranger's grandnephew. (Source: wikipedia.org)