Three ads from the 1950 Jack Benny show. I think it's 1950; could be '51 or later. But it's certainly the early 50s.

#1: Sleep will not come easy for you tonight.

 

 

#2 Dooty-ooot doot dot doot-ta-day:

 

 

 

#3 He's smarter than you, but he doesn't want to press the point. .