sentences:  I. Magination", which was aired by CBS from 1949 to 1952 featuring him as a train engineer who took children through a tunnel to meet with representatives of different occupations.Tripp later hosted "Birthday House", a live (later taped) daily morning children's show on WNBC that aired in New York for four years, starting in 1963.A book of his, "The Christmas That Almost Wasn't", was produced as a movie in Rome in 1966, for which Tripp provided the screenplay and played a lead role.