Q:Given the following context:  Beginning on December 11, 1945, Stafford hosted the Tuesday and Thursday broadcasts of NBC musical variety radio program The Chesterfield Supper Club. On April 5, 1946, the entire cast, including Stafford and Perry Como, participated in the first commercial radio broadcast from an airplane. The initial plan was to use the stand-held microphones used in studios but when these proved to be problematic, the cast switched to hand-held microphones, which because of the plane's cabin pressure became difficult to hold. Three flights were made that day; a rehearsal in the afternoon, then two in the evening—one for the initial 6:00 pm broadcast and another at 10:00 pm for the West Coast broadcast.Stafford moved from New York to California in November 1946, continuing to host Chesterfield Supper Club from Hollywood. In 1948, she restricted her appearances on the show to Tuesdays, and Peggy Lee hosted the Thursday broadcasts. Stafford left the show when it was expanded to 30 minutes, making her final appearance on September 2, 1949. She returned to the program in 1954; it ended its run on NBC Radio the following year. During her time with Chesterfield Supper Club, Stafford revisited some of the folk music she had enjoyed as a child. Weston, her conductor on the programme, suggested using some of the folk music for the show. With her renewed interest in folk tunes came an interest in folklore; Stafford established a contest to award a prize to the best collection of American folklore submitted by a college student. The annual Jo Stafford Prize for American Folklore was handled by the American Folklore Society, with the first prize of $250 awarded in 1949.  answer the following question:  What is the full name of the person that restricted her appearance on the show to only Tuesdays?
A:
Jo Stafford