Arthur Godfrey aired daily from New York City for 27 years, from 1945 until 1972. Jimmy Stewart first appeared on the program on July 30, 1947, as shown by this listing from the New York Times on that date.
At this time the show was airing from 11-11:30 a.m. Its announcer was Tony Martin and Archie Bleyer and His Orchestra provided the music.
This show is not available and nothing is known about Stewart’s appearance.