TV Guide Nickelodeon Sunday

Sheldon participates in a trading-card contest to get even with his archrival; Howard tries to convince Penny to introduce him to one of her friends.

Chandler accidentally lets the cat out of the bag regarding Ross' feelings for Rachel, but upon returning from China, Ross has a new girlfriend.

Rachel waits patiently at the airport for Ross, not knowing he is returning with a new girlfriend; Phoebe gives Monica an awful haircut.

The guys are uncomfortable with Carol's breast milk; Rachel is uncomfortable with Monica's growing friendship with Julie; Joey works as a cologne salesman.

Mr. Heckles dies, leaving all his belongings to Monica and Rachel; Chandler discovers eerie similarities between the late Heckles and himself.

Rachel and Barry start dating again, despite the fact that he's now engaged to Mindy; Chandler goes nuts when a woman he likes won't return his phone calls.

Monica is determined to catch the thief that stole her credit card; Ross tries to get his monkey accepted into a zoo so that he can be with his own kind.

An awkward situation arises when Phil decides to surprise Claire at her college reunion, while Gloria refuses to admit that the new baby is becoming a handful.

Mitch and Cam's best girl friend drops in to announce she's getting married and asks the boys to be best men; Gloria has trust issues with her new nanny.

Cam and Claire bring in a mother from Lily's school as a neutral party during the house flip; Phil decides to teach the kids some basic fix-it skills.

Dave's patience wears thin as Gemma's freeloading sister unexpectedly arrives; Calvin grows weary of Malcolm continuing to live at home.

Sheldon J. Plankton creates a new type of gas that inadvertently turns all of the Krusty Krab patrons into young children.

Squidword becomes close friends with a new neighbor; when Patrick's comes to visit Bikini Bottom, her chaotic temper gets out of control.

Plankton's giant Chum Bucket glove runs wild in town, but SpongeBob has a handy friend to help them out; SpongeBob takes his first break ever at work.

Plankton poses as a wish-granting genie in order to get the secret formula; Mr. Krabs creates a new Krabby soup that attracts a group of hippies move in.

SpongeBob thinks a convict who escaped is his new driving teacher; after Mr. Krabs send him looking for a toy, SpongeBob gets lost in the lost and found.

Mr. Krabs makes SpongeBob and Squidward clean up Bikini Bottom; when a sea bunny destroys Squidward's garden, SpongeBob thinks it's cute.

Ryder and the pups get called to Adventure City when their biggest rival becomes mayor and starts causing chaos all over the metropolis.

The history of the Minions is traced from their beginning as single-celled yellow organisms to serving some of the most notorious figures in history.

Some of the best villains who have ever caused trouble for SpongeBob SquarePants and his friends and neighbors living in Bikini Bottom are revisited.

Bubble Bass finds himself stranded with Patrick in a mysterious swamp; SpongeBob learns a new magic trick, but he can't find anyone to watch it.

Squidward ventures to Nosferatu's castle after accidentally receiving his mail; Nosferatu's minion Slappy kills some time around Bikini Bottom.

When Man Ray rents Squidward's house, SpongeBob tries to ruin his weekend; when Mr. Krabs takes a vacation, he makes Larry the manager of the Krusty Krab.

Plankton tricks SpongeBob into hiding his rotten chum around the city; SpongeBob befriends a small storm cloud and he must protect it from a crazed weather man.

Mr. Krabs makes SpongeBob and Squidward clean up Bikini Bottom; when a sea bunny destroys Squidward's garden, SpongeBob thinks it's cute.

Mr. Krabs turns the Krusty Krab into a jailhouse after Plankton breaks the law; SpongeBob and Patrick turn the pineapple into an RV and go on a road trip.

SpongeBob and Patrick complete chores at Old Man Jenkins' farm; Gary sneaks out of the house so that he can meet up with Spot, who is his secret best friend.

SpongeBob and Squidward try to sell Krabby Patties from a food truck in the darkest depths of the ocean; Pearl & Narlene have a whales' day out in the big city.

The gang is amazed to learn that Phoebe married a gay Canadian ice dancer to help him get his green card; Ross seeks sexual advice from Rachel regarding Julie.

Chandler seeks to make the most of the situation when a sexy woman calls the wrong number; Monica is accused of taking kickbacks and gets fired.

Chandler and Joey baby-sit Ross' son and accidentally lose him while scoping babes on a bus; Phoebe loses her Central Perk singing gig to a professional.

Rachel drinks too much and ends up leaving a revealing message on Ross' answering machine; Monica finds work as Chandler's personal trainer.

Ross enlists Chandler and Joey's help in making a decision between Julie and Rachel; Monica makes a synthetic chocolate substitute.

It's Christmas time and Monica tries tipping with cookies, rather than cash, with mixed results; Phoebe tries to track down her real father.

Sheldon becomes the unlikeliest of tutors as he teaches Leonard how to understand football; a kite-fighting incident threatens Howard and Raj's friendship.

When an argument between Penny and Leonard brings up repressed memories from his youth, Sheldon is forced to act as a moderator between his friends.

With Leonard, Howard and Raj away on a camping trip in the desert, Penny has no choice but to rely on Sheldon after she accidentally injures her shoulder.

Sheldon promises to get revenge on Kripke after being humiliated on National Public Radio; Wolowitz tries not to ruin his relationship with Bernadette.

Sheldon tackles his greatest challenge when he tries to teach physics to Penny; Howard grows jealous when Leonard begins spending time with his girlfriend.

Monica gets together with Fun Bobby, but discovers that when he's not drinking, he's not so fun; Joey wins the role of Dr. Drake Ramoray on "Days of Our Lives."

Ross' ex and her lesbian lover tie the knot, providing Monica with a job catering the wedding; the spirit of a massage client possesses Phoebe.

Ross discovers Marcel's career in commercials while visiting him in California; Joey's first fan turns out to be a delusional stalker.

Rachel and Monica compete for the affections of Jean-Claude Van Damme on a movie set; Chandler meets a former schoolmate who seems hot for him.

Claire and Phil go to the hospital for her angiogram when they inadvertently come across a couple that appears to be the future versions of themselves.

Phil recruits the entire family to help when he has trouble selling Claire and Cam's flipped house; Javier brings his new girlfriend with him to visit Manny.

Phil is excited to talk to Luke and Manny's classmates for career day, but it doesn't go according to plan; Jay proves he wants to be a novelist.

An ex of Mitch invites the whole family out to a fundraising event at the local roller rink; Manny and Luke must choose subjects for their 'My Hero' essays.

Phil gets a brand new RV for the family in hopes going on a fun road trip, leaving Claire to let him learn the hard way as to why this is a terrible idea.

Calvin worries Tina spends an inordinate amount of time with a charming minister; Marty is stunned when he encounters his chaotic new upstairs neighbor.