Jack Benny first appeared on radio as a guest of Ed Sullivan in March 1932.
 He was then given his own show later that year, with Canada Dry Ginger Ale as a sponsor —The Canada Dry Ginger Ale Program, beginning May 2, 1932, on the NBC Blue Network and continuing there for six months until October 26, moving the show to CBS on October 30.
With Ted Weems leading the band, Benny stayed on CBS until January 26, 1933.

Arriving at NBC on March 17, Benny did The Chevrolet Program until April 1, 1934, with Frank Black leading the band.
He continued with The General Tire Revue for the rest of that season, and in the fall of 1934, for General Foods as The Jell-O Program Starring Jack Benny (1934–42), and when sales of Jell-O were affected by sugar rationing during World War II,  The Grape Nuts Flakes Program Starring Jack Benny (later the Grape Nuts and Grape Nuts Flakes Program) (1942–44).
On October 1, 1944, the show became The Lucky Strike Program Starring Jack Benny, when American Tobacco's Lucky Strike cigarettes took over as his radio sponsor, through the mid-1950s.
By that time, the practice of using the sponsor's name as the title began to fade.

The show returned to CBS on January 2, 1949, as part of CBS president William S. Paley's "raid" of NBC talent in 1948–49.
There it stayed for the remainder of its radio run, which ended on May 22, 1955.
CBS aired repeats of previous 1953-55 radio episodes from 1956 to 1958 as The Best of Benny for State Farm Insurance, which later sponsored his television program from 1960 through 1965.

In October, 1934, General Foods agreed to take up sponsorship from the struggling tire-maker, using the show (now airing on the Blue network) to promote its low-selling Jell-O desserts.
Beginning from this point, Benny was heard Sunday evenings at 7, at the time seen as a "graveyard slot".
However, this was eventually associated with Benny, who appeared in that very time spot for his remaining 21 years on radio (counting his TV shows, he would broadcast on Sundays for a record 28 consecutive years).
In the fall of 1935, Bestor was replaced by Johnny Green as the maestro, while Parker was replaced by Michael Bartlett, who himself left after 13 weeks, with Kenny Baker taking over.
In early 1936, Harry Conn left the program after creative conflicts with Benny, who had to resort to vaudeville writers Al Boasberg and Edmund Beloin through the end of the season.

In 1936, after a few years of broadcasting from New York, Benny moved the show to Los Angeles, allowing him to bring in guests from among his show-business friends, including Frank Sinatra, James Stewart, Judy Garland, Barbara Stanwyck, Bing Crosby, Burns and Allen (George Burns was Benny's closest friend), and many others.
Burns, Allen, and Orson Welles guest-hosted several episodes in March and April 1943 when Benny was ill with pneumonia, while Ronald Colman and his wife Benita Hume appeared often in the 1940s as Benny's long-suffering neighbors.

The 1936–37 season brought many changes instrumental to the development of the show.
 Aside from having a new writing team (Beloin and Bill Morrow, with script doctoring by Boasberg), Benny returned to the NBC Red Network and established the program in Hollywood.
 Benny had already done a number of shows on the West Coast for two years—featuring Jimmie Grier as guest conductor—whenever he was doing movie work.
 Green was replaced by Phil Harris.
During this period, the Benny character gradually became that of the vain, miserly, untalented performer for which he would be recognized, while the "ditzy" role went from Mary to Kenny, and Don Wilson would become the target of jokes about his weight.
Halfway through the season, the famous "feud" with Fred Allen began, climaxing with a visit to New York, after which Eddie Anderson was cast as a porter.
His character was so well received that it was decided to have Anderson join the cast as Rochester, Benny's valet.
In 1939, Baker chose to leave the show and was replaced by Dennis Day.

In 1941, NBC celebrated Benny's 10th anniversary in radio in an unprecedente
Jack Benny first appeared on radio as a guest of Ed Sullivan in March 1932.  He was then given his own show later that year, with Canada Dry Ginger Ale as a sponsor —The Canada Dry Ginger Ale Program, beginning May 2, 1932, on the NBC Blue Network and continuing there for six months until October 26, moving the show to CBS on October 30. With Ted Weems leading the band, Benny stayed on CBS until January 26, 1933.
Arriving at NBC on March 17, Benny did The Chevrolet Program until April 1, 1934, with Frank Black leading the band. He continued with The General Tire Revue for the rest of that season, and in the fall of 1934, for General Foods as The Jell-O Program Starring Jack Benny (1934–42), and when sales of Jell-O were affected by sugar rationing during World War II,  The Grape Nuts Flakes Program Starring Jack Benny (later the Grape Nuts and Grape Nuts Flakes Program) (1942–44). On October 1, 1944, the show became The Lucky Strike Program Starring Jack Benny, when American Tobacco's Lucky Strike cigarettes took over as his radio sponsor, through the mid-1950s. By that time, the practice of using the sponsor's name as the title began to fade.
The show returned to CBS on January 2, 1949, as part of CBS president William S. Paley's "raid" of NBC talent in 1948–49. There it stayed for the remainder of its radio run, which ended on May 22, 1955. CBS aired repeats of previous 1953-55 radio episodes from 1956 to 1958 as The Best of Benny for State Farm Insurance, which later sponsored his television program from 1960 through 1965.
In October, 1934, General Foods agreed to take up sponsorship from the struggling tire-maker, using the show (now airing on the Blue network) to promote its low-selling Jell-O desserts. Beginning from this point, Benny was heard Sunday evenings at 7, at the time seen as a "graveyard slot". However, this was eventually associated with Benny, who appeared in that very time spot for his remaining 21 years on radio (counting his TV shows, he would broadcast on Sundays for a record 28 consecutive years). In the fall of 1935, Bestor was replaced by Johnny Green as the maestro, while Parker was replaced by Michael Bartlett, who himself left after 13 weeks, with Kenny Baker taking over. In early 1936, Harry Conn left the program after creative conflicts with Benny, who had to resort to vaudeville writers Al Boasberg and Edmund Beloin through the end of the season.
In 1936, after a few years of broadcasting from New York, Benny moved the show to Los Angeles, allowing him to bring in guests from among his show-business friends, including Frank Sinatra, James Stewart, Judy Garland, Barbara Stanwyck, Bing Crosby, Burns and Allen (George Burns was Benny's closest friend), and many others. Burns, Allen, and Orson Welles guest-hosted several episodes in March and April 1943 when Benny was ill with pneumonia, while Ronald Colman and his wife Benita Hume appeared often in the 1940s as Benny's long-suffering neighbors.
The 1936–37 season brought many changes instrumental to the development of the show.  Aside from having a new writing team (Beloin and Bill Morrow, with script doctoring by Boasberg), Benny returned to the NBC Red Network and established the program in Hollywood.  Benny had already done a number of shows on the West Coast for two years—featuring Jimmie Grier as guest conductor—whenever he was doing movie work.  Green was replaced by Phil Harris. During this period, the Benny character gradually became that of the vain, miserly, untalented performer for which he would be recognized, while the "ditzy" role went from Mary to Kenny, and Don Wilson would become the target of jokes about his weight. Halfway through the season, the famous "feud" with Fred Allen began, climaxing with a visit to New York, after which Eddie Anderson was cast as a porter. His character was so well received that it was decided to have Anderson join the cast as Rochester, Benny's valet. In 1939, Baker chose to leave the show and was replaced by Dennis Day.
In 1941, NBC celebrated Benny's 10th anniversary in radio in an unprecedente
The Jack Benny Program