75 YEARS OF I LOVE LUCY — THE SITCOM THAT CHANGED TELEVISION FOREVER BEGAN WITH A SURPRISING SECRET ABOUT ITS VERY FIRST EPISODE! Lucille Ball and Desi Arnaz introduced America to a comedy classic that would bring laughter into millions of homes for generations. Lucy Ricardo’s unforgettable antics, Ricky’s musical charm, and the hilarious friendship with Fred and Ethel became television history. Yet the episode audiences watched on premiere night wasn’t actually the first one filmed. A behind-the-scenes decision changed how viewers first met the Ricardos, creating a fascinating story that remains worth revisiting 75 years later.

Seventy-five years ago, I Love Lucy made its debut on CBS with the episode “The Girls Want to Go to a Nightclub.” Airing on Oct. 15, 1951, the episode introduced fans to Lucy and Ricky Ricardo (Lucille Ball, Desi Arnaz) and their best friend/landlords Ethel and Fred Mertz (Vivian Vance, William Frawley) with a storyline about the Mertzes’ 18th wedding anniversary.

While Ethel wants to celebrate with a night out at the Copacabana nightclub, Fred wants to go to a boxing match. Ethel and Lucy inform their husbands they plan to go clubbing with dates, so Ricky arranges to get dates for him and Fred as well.

When Lucy overhears her husband’s plan to go on a date, she and Ethel show up at the Ricardo door dressed as hillbillies ready for their night on the town. It’s not until Lucy grabs a cigarette from a desk drawer that  Ricky realizes it’s his wife hidden behind the braids and blacked-out teeth, and they all get a good laugh.

“The Girls Want to Go to a Nightclub” episode gave viewers an early look at the boys vs. girls theme that would follow I Love Lucy for five more seasons, but it almost didn’t serve as the series premiere. According to Everything Lucy, it was “not the initial regular series episode filmed, but was aired first because of the hilarious scene set in the Ricardos’ apartment near the end.”

A filming document preserved by the Library of Congress shows the rehearsal and shooting schedule for I Love Lucy Episode No. 1, which was originally supposed to be “Lucy Thinks Ricky is Trying to Murder Her.” That episode ultimately aired on November 5, 1951, as the fourth episode of the classic sitcom.

In an interview with the Television Academy Foundation, film editor Dann Cahn looked back on shooting what was originally supposed to be the I Love Lucy premiere episode and noted that the flat lighting system used for the show’s pioneering three-camera live studio setup was groundbreaking.

“The first episode shot was a simple little story of where Lucy is an avid murder mystery reader and she’s reading a book and through various misunderstandings and intrigue she thinks Ricky’s going to murder her,” he recalled. “The thing was titled ‘Lucy Thinks Ricky is Trying to Murder Her.'”

“They shot the show, we met the Mertzes, put everyone together. They were experimenting with Lucy’s hair and the makeup and Karl [Freund] was fooling with the lights, the lighting he finally developed in those first 13 shows is basically the same lighting they use on sitcoms today. It hasn’t changed since 1951.”

When I Love Lucy premiered on Oct. 15 with “The Girls Want to Go to a Nightclub,” the show’s writers Madelyn Pugh Davis and Bob Carroll Jr. watched it at director Marc Daniels’ house.

Everyone thought that Ball was “terribly funny and wonderful,” Davis later told The Los Angeles Times. “We had hopes for [the show] …. We hoped it would be on for 13 weeks.”