"Lucy! You got some 'splainin' to do!" is one of America's best-known TV lines. I Love Lucy ran from 1951 through 1957 and later spun into other series. Today would've been Lucille Ball's 102nd birthday. Here, some of her funniest moments on the original Lucy show.

Vitameatavegamin

When Lucy gets hired to do a TV commercial for a new health product, she runs into some trouble with script.

Candy Factory

Ricky wants Lucy to try working for a week, so she and Ethel get jobs at a candy factory. What ensues is one of the series' most famous scenes.

Harpo Marx

The gang meets Harpo Marx and Lucy does the famous "mirror" routine.

Superman

Lucy tries to make Little Ricky's birthday party the best of his class by having a very special guest attend.

Barbershop Quartet

Lucy butts into a singing group with disastrous results.

Mama Yo Quiero

Lucy tries to remind Ricky of his native Cuba by redecorating the apartment and singing him a Spanish song.
https://www.youtube.com/watch?v=vlndNoogYnI