The landmark episode where Lucy and Ricky find out they're expecting, handled with the warmth and humor that made the show a phenomenon.
Lucy's pregnancy cravings and mood swings give Ricky a whole new set of challenges to navigate.
The expecting parents clash over baby names in a battle that pulls the Mertzes into the fray.
Lucy and the gang put on a show to raise money, leading to rehearsal chaos and a memorable performance.
Pregnancy doesn't slow Lucy down one bit as she hatches yet another scheme to get into show business.
Lucy's nesting instincts kick into overdrive, and her preparations for the baby are anything but conventional.
Ricky tries to keep Lucy calm before the baby arrives, but his own nerves are the real source of comedy.
Lucy and Ethel get into the baby clothes business, and their entrepreneurial spirit creates more laughs than profits.
As the due date approaches, everyone rehearses their plan for getting to the hospital — but nothing goes as practiced.
The historic episode where Little Ricky arrives, watched by more Americans than the presidential inauguration the next day.
The Ricardos adjust to life with a newborn, and Ricky discovers that fatherhood comes with its own brand of comedy.
Lucy and Ricky compete over who's the better parent, turning baby care into an Olympic-level competition.
Fred and Ethel butt heads with the Ricardos over the best way to raise Little Ricky, with everyone sure they know best.
Lucy fears she's losing her looks after having the baby and launches a self-improvement campaign that goes off the rails.
The Ricardos and Mertzes try to save money by doing things themselves, proving that DIY isn't always the cheapest option.
Lucy gets jealous when Ricky pays attention to another woman, setting off a chain reaction of comedic misunderstandings.
An invitation to a fancy event sends Lucy scrambling to find the perfect outfit, with Ethel as her willing accomplice.
Lucy and Ethel accidentally destroy something valuable and spend the whole episode trying to cover their tracks.
The foursome's attempt at a quiet evening together proves that these four can turn anything into an adventure.
Lucy takes on a new challenge that she's completely unqualified for, bringing her signature determination and zero skill.
Ricky plans something special, but Lucy's snooping threatens to ruin the surprise in the most Lucy fashion imaginable.
A household chore competition between the couples proves that pride goeth before a very funny fall.
Lucy's latest moneymaking idea drags all four friends into a scheme that's doomed from the start — but hilarious all the way through.
The Ricardos face a neighborly dispute that escalates far beyond reason, with Fred happily pouring fuel on the fire.
Lucy decides to write her memoirs and discovers that her version of events differs wildly from everyone else's.
A mix-up at the club puts Ricky in an awkward position, and Lucy's rescue attempt makes everything wonderfully worse.
Lucy tries to teach Little Ricky a life lesson and ends up learning one herself in this heartwarming episode.
The apartment building becomes a battleground when the Ricardos and Mertzes disagree about a building improvement.
Lucy gets mixed up with a celebrity lookalike situation that snowballs into one of her most outrageous escapades.
The season wraps up with Lucy and the gang in top form, delivering the kind of laughs that made this show a national treasure.
Ricky gets a chance at a big career move, and Lucy's support takes the form of enthusiastic interference.