Lowell Jackson Thomas (April 6, 1892 – August 29, 1981)
has two stars on the Hollywood Walk of Fame and was
inducted into the Radio Hall of Fame in 1989. 

The Martin & Lewis Show went on the air, while still searching for a sponsor.Their first 
guest that Sunday night was Bob Hope.The NBC radio shows consisted of an opening song and dance by Dean Martin, followed by some verbal slapstick, a guest spot by a well-known Hollywood star,a lot of Jerry Lewis high jinx, and then a closing number by Martin. The radio series ran till 1952.

Bob Hope

The Big Story was a radio crime show on NBC which dramatized the true stories of real-life newspaper reporters. The only continuing character was the narrator, Bob Sloane.The first sponsor of the show was Pall Mall Cigarettes and Lucky Strike Cigarettes sponsored the last two years. The series aired until March 23, 1955 and was top rated, rivaling Bing Crosby’s Philco Radio Time.

Jack Benny was eager to break into the new medium of radio. In 1932, after a four 
week nightclub run, he was invited onto a radio program hosted by his friend Ed
Sullivan, uttering his first radio spiel "This is Jack Benny talking. There will be a
slight pause while you say, ‘Who cares?’’ With Canada Dry Ginger Ale as a
sponsor, Jack soon had his own radio show, The Canada Dry Program, which
began May 2, 1932 on the NBC Blue Network.

Popular Late night TV host David Letterman (above) attend Ball State University,
in Muncie, Indiana where he began his broadcasting career as an announcer and newscaster at the college’s student-run radio station…WBST, a 10-watt campus
station which now is part of Indiana public radio. He was reportedly fired for treating classical music with “irreverence”. He graduated from what was then the college’s  Department of Radio and Television, in 1969. 

David Letterman on the Late show set