Bert and Ernie

From IMDB

Two of Sesame Street (1969)’s Muppets, Bert and Ernie, share their names with the film’s cop and cab driver, respectively, but it’s believed to be just a coincidence. Karolyn Grimes (Zuzu) insisted that the two Muppets were named as such because the movie was Jim Henson‘s favorite, Henson’s writing partner Jerry Juhl insisted to The San Francisco Chronicle that Ernie and Bert were not named after the movie’s characters. Juhl said, “I was not present at the naming, but I was always positive [the rumor] was incorrect. Despite his many talents, Jim had no memory for details like this. He knew the movie, of course, but would not have remembered the cop and the cab driver. I was not able to confirm this with Jim before he died, but shortly thereafter I spoke to Jon Stone, Sesame Street (1969)’s first producer and head writer and a man largely responsible for the show’s format. He assured me that Ernie and Bert were named one day when he and Jim were studying the prototype puppets. They decided that one of them looked like an Ernie, and the other one looked like a Bert. The movie character names are purely coincidental.”