The Dick Van Dyke Show (1961)

S5E3 Uhny Uftz

Rob and Buddy are burning the midnight oil when they keep hearing a strange metallic voice uttering "Uhny Uftz." Curious, they venture into a supposedly deserted office in the building and discover a quirky inventor, accompanied by a silent, somewhat intimidating assistant. The inventor has created a toy flying saucer that works surprisingly well, but instead of delivering the festive greeting "Merry Christmas," the saucer only repeats the odd phrase "Uhny Uftz."