April 29, 1954, is the birthday of Jerry Seinfeld, stand-up comic, who between 1989 and 1998 played a character based on himself in the American television sitcom “Seinfeld.” Earlier this month it was reported that the show’s 180 episodes have earned a total of $3.1 billion in syndication revenues since the airing of the final episode on May 14, 1998 – with some $400 million each going to the...