These days, it feels like TV shows barely have time for a theme song before jumping into the action—sometimes it’s just a quick title card and a few seconds of music, or it's simply nonexistent.

The heart and satin intro was actually created for the show when it went into reruns in 1958. 8.In 1957, Leave It to Beaver became the first TV show to show part of a toilet. 9.The Honeymooners is ...