The Harlem Globetrotters Popcorn Machine was a Saturday morning variety show featuring players from the basketball team the Harlem Globetrotters singing, dancing, and performing comedy sketches. Broadcast in 1974, it was produced by Funhouse Productions for Viacom Productions.
The Harlem Globetrotters were never on television on weekday afternoons.
I suggested that The Harlem Globetrotters were never on tv on weekday afternoons.  While their Popcorn Machine variety show was on Saturdays, the context doesn't prove they were never on tv on weekday afternoons.  I think this is a case of it being more difficult to prove a negative.  Or possibly of the AI not understanding that the current context isn't the only possible reality.