The Fleischmann's Yeast Hour

On this program, the American listening audience heard many future stars for the first time, as it introduced such talents as Milton Berle, Burns and Allen, Alice Faye, the Mills Brothers, Joe Penner, Kate Smith and Red Skelton.

[3] Other guests included Ray Bolger, James Cagney, Fanny Brice, Ilka Chase, Helen Hayes, Leslie Howard, Bert Lahr, Ethel Merman, Margaret Sullavan, Fay Wray and A.

Edgar Bergen became the first ventriloquist to successfully perform on national radio when he and Charlie McCarthy initially appeared on Rudy's show on December 17, 1936.

In the 1936–39 run as The Royal Gelatin Hour, guests included Noël Coward, Bob Hope, Willie Howard, Gertrude Lawrence, Pat O'Brien, Carmen Miranda, Tyrone Power, Tommy Riggs and Betty Lou, Peter Lorre, Ed Wynn and Roland Young.

Vallée continued on NBC with sponsors Sealtest, Kraft Foods, Procter & Gamble's Drene Shampoo and Philip Morris cigarettes.