TV Guide Nickelodeon Monday

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.

Dave competes against an incumbent city council member in an upcoming election that concludes in a dramatic fashion.

In order to impress everyone at a weightlifting competition, SpongeBob purchases a pair of inflatable arm muscles to make himself look buff.

Mayor Humdinger disrupts Adventure Bay with his kitties, Katie and the pups must rescue the town; Cap'n Turbot loses his glasses and creates chaos in his path.

Mayor Humdinger creates false emergencies for his Kitten Catastrophe Crew; the Wingnuts get a new pet ostrich, but it gets lost on the trip home.

When Chickaletta, gets stuck on a runaway drone, butterflies cause chaos all over Adventure Bay; the statue of Chickaletta is stolen by Mayor Humdinger.

Traveling Travis lands in Antarctica but believes he's on Mars; Mr. Porter and Alex go on a sightseeing hike but get trapped inside a huge maze.

Peppa is at Penny Polar Bear's house for a movie night; Granny Sheep & Suzy take Granny Pig & Peppa around Art House Day; the children learn about flowers.

Harold, Ladybird, and the Copycat team up and the three super baddies take the Mighty Pups' mighty meteor; the Mighty Pups must get their meteor back.

Adventure Bay is getting a brand-new airport and Sweetie tries to take the Princess' place at the grand opening.

Rubble and Wild Cat rescue animals from a giant runaway ball of yarn; Skye and Rory rescue a painter hanging from a scaffold; Marshall and Leo rescue animals.

The PAW Patrol try to solve the mystery of the Werepuppy; Mayor Goodway tries to brave all of the hazards of the Wingnuts Dude Ranch, while sleepwalking.

Capt. Turbot and Francois find out that an underwater volcano is going to erupt while Yumi and Mayor Goodway are scuba diving; Farmer Al's farm becomes flooded.

Park Ranger Rose asks Rubble & Crew to fix the bridge to Bear Island, but Speed Meister intervenes and the pups must clean up his mess and protect the bears.

Mr. Crocodile takes a motto a bit too far; Daisy and Mr. Crocodile arrange a dance performance for Mrs. Flores after they find her old dance shoes.

When Sid the Pirate and Arrby steal the Ferris wheel, the pups try to bring it back, but Sid decides to steal the PAW Patrol's Sea Patroller instead.

Cap'n Turbot and Francois' Grandma Tilly ride off on a dolphin; when a mysterious rumbling sound scares the elephants, Carlos and Tracker call the PAW Patrol.

Patrick needs to go to the store in order to use his ice cream coupon; Mr. Krabs purchases Squidward's art, but he must bring out the artist to make profit.

SpongeBob and Squidward take a delivery to a town where logic no longer applies; SpongeBob can't stop biting his nails, but he also can't figure out why.

SpongeBob and Patrick exchange miniaturized versions of themselves; Plankton tells his grandmother he owns the Krusty Krab, then she comes over for a visit.

SpongeBob embarks on an epic journey to the legendary spatula Guru Greasetrap; SpongeBob builds a snail-house outside for Gary to play in while he is at work.

Cecil teaches Patrick how to drive boats; Patrick time-travels in a race for the Krusty Krab's newest menu item.

Gary protects the secret formula from Plankton while SpongBob hides it; Sandy must save the day after a freak accident makes the entire town as dumb as Patrick.

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.

Patrick discovers that the rock he lives under is a sea turtle who overslept; Mr. Krabs can't find a way to kick Old Man Jenkins out of the Krusty Krab.

Patrick takes a stranger on a tour of his favorite spots in Bikini Bottom; SpongeBob winds up on the roof of the Krusty Krab, but he is afraid to get off.

SpongeBob and Patrick are trapped in a dimension where anything they draw comes to life; SpongeBob and Patrick help Bubble Bass move out of his mom's basement.

After getting his big break, Joey pays Chandler back; Monica and Rachel's prom video reveals Ross' feelings for Rachel, as well as Monica's former girth.

After having a fight with Chandler, Joey decides to move out; Rachel and Phoebe decide to get tattoos; Monica's father disapproves of her dating Richard.

Phoebe is discovered by a record producer who wants to make "Smelly Cat" a video; Joey considers moving back in with Chandler, but Chandler has a new roommate.

Creeped out by his bizarre new roommate, Chandler demands he move out; a new book on female empowerment inspires the ladies to have a "goddess meeting."

Joey's soap opera character gets dropped down an elevator shaft; much to Chandler's horror, Phoebe helps Chandler bond with his new roommate.

Ross and Rachel consummate their new relationship in the display area of the museum; Monica begins dating a handsome older doctor.

The boys catch a train for San Francisco, but their trip takes a detour when they learn that actress and sci-fi idol Summer Glau is also aboard.

Penny and Leonard rethink their feelings for each other when he and the guys decide to spend the summer working at a facility at the North Pole.

While attending a party, Raj and Sheldon meet two attractive, mirthful women; Leonard is disappointed when he learns Penny believes in psychics.

After Leonard and Sheldon discover their apartment has been robbed, they ask their friends to help them build a technologically advanced security system.

When he is unable to solve a difficult physics problem, Sheldon decides to work with Penny in hopes it will help him clear his mind and find an answer.

Phoebe's world view is shattered when she learns how "Old Yeller" really ends; Monica becomes jealous when Richard begins going out with Joey and Chandler.

Chandler and Ross run into two bullies at the coffee shop; Monica is forced to get a job at a 50's theme restaurant after losing her cash in the stock market.

The gang plans a surprise party for Rachel, but even they show surprise when they discover that both of her estranged parents have shown up.

Phoebe catches chicken pox just as her old flame arrives in town on leave from the Navy; Joey gets a job at Chandler's office but decides to play it as a role.

Joey and Chandler adopt a baby chick and a duck; Ross misses a panel for the Discovery Channel to help Rachel, who may have a broken rib.

At the premiere of Joey's big play, Ross alone concludes that Rachel's date is insane; Joey falls in love with Kate, but she gets a big job in Los Angeles.

Cameron is desperately trying to find ways to keep his engagement hidden when his sister comes for a visit, but she has her own news that catches him off-guard.

Disaster looms after Jay pulls a few strings to reserve a table at the newest popular restaurant, only for every family to begin running a bit late.

Gloria hires a male nanny; Phil and Jay take Frank out for a night on the town; Mitch and Cam commission Pepper to plan their dream wedding.

Calvin is resistant towards Tina's idea to see a couples therapist, which she gets after learning that Dave and Gemma see one to keep their marriage alive.

An eco-conscious neighbor and his pet rooster cause commotion in the community that Dave and Calvin aim to correct; the youngest Butler son makes a confession.