TV Guide Nickelodeon Sunday

Raj publishes a paper that suggests he has stumbled upon alien life; Leonard aspires to become the principal investigator during a study in plasma physics.

Kripke stumbles upon evidence that suggests Dr. Pemberton had plagiarized his college thesis; Howard learns multiple waitresses used to have a crush on him.

Leonard's happy feelings are dashed when he learns why his mother has come to visit; the Wolowitzes grow wary of Denise and Stuart's continued stay.

Claire and Phil decide to keep an eye on Luke and Manny when they hang with a questionable friend; Gloria and Jay are having a fight over two different things.

Phil lost the elected office of social chair to his Gil Thorpe, but his chance for revenge comes up as a wrestling match between Luke and Gil's kid.

Cameron competes with a popular teacher over the control of the school's big spring dance; Phil brings Haley along to the annual realtor banquet.

Jay takes Luke into the garage hoping to instill some manly wisdom into him; Gloria and Claire take Lily shopping for a flower girl dress.

The adults are heading to Vegas and Jay is able to get Excelsior Level hotel accommodations thanks to one of his big clients; Clarie hits the tables.

Mitch is trying to not reveal how he really feels concerning the wedding topper that Cam's father whittled out of soap as a gift for them.

Dave offers to help determine why Calvin's employees are quitting are en masse; Marty schemes to get a date with his new neighbor.

Malcolm and Marty consider the possibility that the neighborhood is affecting their dad; when Tina is mistaken for a celebrity, she decides to play along.

SpongeBob and Patrick play with time and send themselves to a different Bikini Bottom; the guys standby as Mermaid Man and Barnacle Boy fight.

Spongebob has to buy a new spatula after Spat breaks, but the new one is not as good as Spat demands; Spongebob is forced to travel down into a wishing well.

Hosts see NFL highlights, interviews and game picks as you've never seen them before; find out which player takes home the slimiest trophy in sports.

When a new secret formula for Krabby Patties is revealed, it proves disastrous for Bikini Bottom; Mr. Krabs and Plankton have to attend boating school classes.

The Krusty Krew get lazy when their moms take over the Krusty Krab; Patrick's new pet rock catches the eye of a mischievous rock collector.

DoodleBob bites SpongeBob, transforming him into a WereDoodle; SpongeBob dresses up for Gorilla Suit Day and is mistaken for a real gorilla.

Max gets some guidance from a farm dog as he tries to protect a toddler, who is the newest member of his family, and Snowball goes on a dangerous mission.

Van Helsing's strange new invention turns Drac and the gang into humans and Johnny into a monster, so they must figure out a way to switch back.

Mr. Krabs tries to sabotage the circus for stealing his customers; Sandy tries to solve everyone's issues, only to return home to her own monster of a problem.

SpongeBob and Mr. Krabs try to get the Krusty Krab's grill back from some kids; The Krusty Krab's customers crave something creepier than usual at night.

Mr. Krabs and Plankton accidentally book the same room on a cruise; SpongeBob and Bubble Bass disagree over which version of Captain Quasar is better.

Sandy gives her friends special saltwater trees, but they need more attention; SpongeBob and Patrick mistake a burglar for the tooth fairy.

Sheldon J. Plankton joins the League of E.V.I.L.; SpongeBob and Patrick take Squidward on a plane to a tropical resort.

Squidward's prankster father visits and brings gags with him; Plankton tries to get a taste of the secret formula by attaching himself to SpongeBob's tongue.

A magical fish teaches SpongeBob how to keep surfaces looking clean; SpongeBob is recruited to cook in the big leagues, but he must prove his worth.

SpongeBob & Patrick discover that their favorite Kelpbed Kid is a familiar face; It's invasion of the faux-chovies when everyone suddenly starts meeping.

SpongeBob and Patrick search for Squidward after the inside of his home turns into a vast garbage jungle; Plankton disguises himself as a collectible figurine.

Squidward and Plankton come together to take down a common adversary; to experience the ocean firsthand, Sandy swaps genes with a fish.

Rock quests for an ancient artifact to prove he is worthy of working with his modeling role model, Franz Roll; Franz Roll; Paper and Scissors compete.

Bubble Bass & the Dirty Bubble team up to become a nuisance; Plankton joins the SquarePants family in the hopes of becoming closer to SpongeBob.

Rachel crashes Ross's wedding in order to disrupt the proceedings; Joey gets homesick; A drunk Monica and Chandler end up sleeping together.

Ross believes that Emily will fail to show for their honeymoon, and makes the mistake of inviting Rachel to avoiding wasting money on a ticket.

Chandler accidentally kisses Monica in front of Phoebe and Rachel and then must kiss them to cover it up; Rachel finally tells Ross her feelings for him.

Phoebe gives birth to triplets and asks her half-brother if she can keep one of the babies; Joey's "sympathy pains" turn out to be kidney stones.

Joey thinks he's hosting a telethon for PBS, but turns out to be a pledge-taker; Phoebe, trying to perform a selfless deed, unknowingly donates money to PBS.

Ross tells Rachel that he can't see her anymore if he wants to get Emily back; Joey finds out about Chandler and Monica and they swear him to secrecy.

Joey's new girlfriend likes to get a little slaphappy with him and Rachel takes offense to it; Ross confronts Chandler about his relationship with Monica.

Phoebe finds a police badge under her seat at Central Perk and uses it to go on missions of mercy; Ross encounters troubles moving his new sofa upstairs.

Leonard and Sheldon meet their beautiful, new female neighbor for the first time, but each of them both has very different feelings toward her.

Hoping to make a good impression, Leonard offers to do Penny the favor of signing for a delivery when she is unable to receive the package herself.

Leonard learns that Penny is seeing someone but soon gathers up the courage, provided by help from his fellow nerds, to ask out another girl.

After he is fired from his job, Sheldon begins to explore life beyond physics, but trouble arises, causing Leonard to call on Sheldon's mother.

Once realizing that his future of ever getting close to Penny will never be, Leonard decides to engage in a one night stand with a fellow female scientist.

Phil decides he is going to carry out his mother's desire for him to reconnect with the land in which he was conceived and the whole family is going with him.

Phil fails to wait for the repairman at home and tries to build an elaborate lie to keep Claire in the dark, but he physically cannot handle the stress.

Jay, Gloria and Manny agree to step outside of their comfort zones and to start trying new things; Mitch and Cam's wedding is getting expensive.

Mitch and Cam think they're ready for anything until everything starts flying apart and their wedding planner starts doing what he can to keep the peace.

The planner and the family keep pulling out new contingency plans as the day progresses into a complete show of chaos and the guests are getting impatient.

Life has been ideal in the Dunphy house for the whole summer, but the mood quickly changes when Alex gets back from her humanitarian trip.

Calvin, Dave and Gemma try to help Tina after she gets unexpected news; Marty and Grover work together to make a robot for his school's science competition.

Gemma struggles to accept some of Calvin's methods as coach of a youth basketball team; Tina and Marty face the consequences of an old Butler family secret.