on Television in 1942?

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This article says that Nino performed on Television with Benny Goodman at age 7. He turned 7 in 1942, which is at least 6 years before even the first test TV broadcasts. My assumption is that this is meant to say "on screen" as it was probably shown in a "short" at a movie theater. I didn't change it though because I don't know the actual details. It could have also occurred on stage or during a radio broadcast.