First television sponsor

According to Official Guinness Records,

The first time that a TV show was sponsored occurred on 19 June 1946, when Gillette sponsored the broadcast of a boxing match between Joe Louis and Billy Conn (both USA) in New York, USA.

For a complete list of 1946 records, please visit 1946 Guinness Records in United States.

Other United States records that might interest you:

• Longest field goal, claimed - American football (non-NFL)
• First successful separation of conjoined twins
• First public TV advert
• First TV advert
• Most nominees for best special effects Oscar in one year