The I Love Lucy sitcom was the first scripted TV program to be filmed before a studio audience, and it paved the way for many of the sitcoms that followed.

Here are 10 facts about this groundbreaking show:

1. The idea for I Love Lucy came fromLucille Ball’s real-life pregnancy. Ball and her husband, Desi Arnaz, decided to write a sitcom about a pregnant woman to capitalize on her pregnancy.

2. I Love Lucy was originally going to be called ”The Lucille Ball-Desi Arnaz Show.”

3. The pilot episode of I Love Lucy was filmed in front of a live studio audience, but the rest of the episodes were not. Instead, they were filmed using three cameras in front of a ”laugh track” audience.

4. I Love Lucy was the first sitcom to be filmed entirely on 35 mm film.

5. The original title sequence for I Love Lucy featured footage of Lucille Ball and Desi Arnaz’s wedding day.

6. In the early episodes of I Love Lucy, Ball and Arnaz played themselves – not married couple Ricky and Lucy Ricardo.

7 . The iconic ”I Love Lucy” theme song was not written specifically for the show. It was actually a piece of Latin music that Ball and Arnaz heard while on their honeymoon in Cuba.

8. I Love Lucy was the first TV show to be syndicated.

9. The original ”I Love Lucy” script called for Ricky Ricardo to be Cuban, not Puerto Rican. This was changed after Arnaz was cast in the role.

10. I Love Lucy was the most watched TV show in America for four out of its six seasons.