bpatrick said:Kovacs did influence "Laugh-In," although
indirectly and five years after his death.
One of the regulars on his ABC shows in
the late '50s/early '60s was actress Jolene
Brand, wife of producer George Schlatter,
who created "Laugh-In" and used Kovacs'
"blackout" technique of jokes lasting only
a few seconds.
Not to take anything away from Kovacs - he may have brought the "black out" skit to television comedy, but "black out" skits have a history on stage going back to Vaudeville. Short comedy skits that were ended abruptly after the punchline by extinguishing the stage lights.
Though it's a little different, stage plays would also use the technique to heighten the drama or shock value of a scene.