On Fresh Air Todd Purdum talks about Desi Arnaz and how he shaped the modern sitcom with I Love Lucy. 

It’s a reminder of how stupid network executives were in those days (they still are) and how afraid they were of anything that even implied S-E-X, so when Lucy got pregnant they had a case of the vapors. If you don’t already know the story, I think you’ll find it quite amusing.

I didn’t see the show during most of its original run, or at least I don’t remember seeing it then, except perhaps for a few very vague memories, but later on CBS used to run I Love Lucy reruns on weekday mornings at 10:00 AM, and that’s when I saw most of the episodes.

Here is a brief snippet that I remember viewing from oh, so many years ago from season 3 episode 15,”The Charm School”: