This and the photo below (which shows how the effect was done) were by Ralph Morse and done in March 1957, which were probably included in the cover story on Kovacs. Kovacs created something of a sensation with his half-hour NBC special, The Ernie Kovacs Show. Usually, NBC specials were 90 minutes, but Jerry Lewis was only willing to do a hour-long show and Kovacs very willing stepped into the breach to fill the allotted time slot. He took this opportunity to experiment with a show done entirely in pantomime; he also showed his penchant for experimenting with the medium, including doing visual effects. These type of “electronic” effects by Kovacs and other early TV pioneers in many ways anticipated today’s digital effects.
Anyway, as The Ernie Kovacs Website describes notes:
The 30-minute show Ernie did was devoid of any dialogue, and featured the silent character Ernie had been developing, Eugene, as well as the Nairobi Trio. The show’s centerpiece was an extended series of surreal sight gags following Eugene, a mute, meek character as a fish out of water in a stuffy men’s club. The sketch included the famous gag involving the gravity-defying olives and thermos of coffee.