As one who remembers watching ALL his shows when they were "first run" (and on a 12-inch round-screen Zenith TV with rabbit ears at that, B&W of course), Kovacs was a true master at getting around the very strict TV censorship of the '50s. Most of the time, they didn't even realize what he had done! He was the primary force that eventually led to the overthrow of the "Hays Commission" that set up the censorship rules Lenny Bruce and later George Carlin finished the job. BTW, I think the beauty who had the "bunter" line was his wife, Edie Adams! Kovacs' untimely death in 1962 deprived us all of one of the greatest comedic talents ever.
PS: a few years after we got that Zenith, it got to the point where (at age 10 or so) I couldn't keep it running with tube changes; I salvaged most of the parts (including a huge multi-voltage output power supply separate from the main chassis) and it served as the source of my first basement "junk box" parts inventory. The PSU was used to power several different tube designs for audio, ham gear, etc.
He'd also thump the floor with his hand, creating a nice random audio pattern on the 'scope trace. Brilliant! This was an early "blue screen" effect, except it was B&W so you had to key on intensity level instead of color. Kovacs sometimes superposed himself in clips from movies, wearing a white coat and white cap so his black hair wouldn't be transparent.
Here's my favorite Ernie Kovacs TV story: In the old Dumont Network days, the studio was on top of a hill with a great view of the city (don't know which one). Kovacs and his buddies liked to play a little game during the late night movie. While it was playing, they'd lower the master volume at the station. Everyone watching the movie in TV Land would then turn up the volume on their sets. Kovacs would do it again, slowly lowering the master volume over half an hour or so until everybody in TV Land had their volume cranked up all the way. Then they'd raise the master volume back to full strength and run to the windows. Lights would come on all over town as people were awakened by suddenly-blaring TVs.
You could get away with that sort of thing back then because TV was so unreliable that people didn't suspect it was deliberate.
Max, you have better luck than the Irish! I searched YouTube for Ernie Kovacs Show and this one came up first. It's bits from several shows, with a great 1812 Overture. The Oscilloscope trace comes in at about 6:03 minutes.
Hmm; OK, let's try another way to skin this cat. I wonder if Pig Latin will get by the URL-ay Ilter-fay?