J. Edgar Hoover Loved Lucy.

It turned out that J. Edgar Hoover, perhaps the most famous director of the FBI, loved the classic TV show "I Love Lucy".

He wrote a fan letter to Lucille Ball:

"I got quite a kick out of your reference to the FBI and myself and I don't believe that I ever laughed as much at any TV program as I did at yours on Monday evening."

http://www.lucylibrary.com/pages/lucy-news-fbi.letter.html (via Boing Boing)