Fun Fact: It had a spinoff called I’ve Got a Secret that aired for just as long. Time on TV: 1950-61 on NBC (original TV run) The gameplay was secondary to the not-so-secret formula of laughter ...

First radio performance of Mussorgsky’s Khovanchina, with Rise Stevens and Lawrence Tibbett. NBC Symphony (Sat. 6:30 p.m., NBC). Toscanini conducts an all-Brahms program. Saturday Night Revue (8 ...

Metropolitan Opera (Sat. 2 p.m., ABC). Carmen, with Risë Stevens and Nadine Conner. NBC Theater (Sun. 2 p.m., NBC). Walter Van Tilburg Clark’s The Track of the Cat. New York Philharmonic (Sun.