The Giant List of TV Crossovers

A double date descends into chaos when Mac and Desi witness a murder in the back of the restaurant, and as they work to find the killer, Riley tries to keep the secret about about their "day jobs" from her boyfriend, Aubrey

With time running out to save the future, Picard seeks out an old friend for help; Rios winds up on the wrong side of the law; Jurati makes a deal with the Borg Queen.

Jack's mom comes early for the holidays, Jenna tries to upstage Liz with her own surprise wedding, and Tracy tries to fulfill Kenneth's wish that his life was more like TV with the help of Florence Henderson.

Goodie Cumberbatch goes on "Face the Nation" as the family adjusts to living at the old home of Archie Bunker.

A meek, unhappy and frustrated husband with a nagging wife and incorrigible sons finally finds solace in his new TV set that "comes alive" with the use of a magic remote control and gives him the chance to replace his family with various TV characters. But then reality hits.

Facing the strange situation of the Penguin determined to be arrested, Batman must figure out why.

Lucy competes with her friend Carolyn Appleby over invitations and scheduling for Little Ricky's birthday party. When her husband Ricky mentions that Superman is in town, Lucy tries to get Superman to come to Little Ricky's party, sure that this will make it a much bigger draw than the one Carolyn is hosting. Ricky tries, but Superman can't make the party. So Lucy disguises herself as Superman, but gets herself into great peril. Fortunately, the real Superman does show up to save the day.

ALF has taken a liking to watching Gilligan's Island (1964). He dresses accordingly and has coconut drinks. He's bored at the Tanners' house and takes things one step too far towards Gilligan's Island (1964).

Many different cartoon stars like Bugs Bunny, the Muppet Babies and Garfield join forces to convince a teenager that drugs aren't cool.

Sam, Dean, and Castiel are transported into the animated world of Scooby Doo where they join forces with the Scooby gang to solve a ghostly mystery.

Thanks to Timmy Turner's Fairy Godparents Cosmo & Wanda, he and Jimmy Neutron switch universes and have zany adventures therein.

Timmy Turner (Tara Strong) and Jimmy Neutron's (Debi Derryberry's) worlds clash once again. Hilarity ensues.

Third crossover of "The Fairly OddParents" and "The Adventures of Jimmy Neutron: Boy Genius."

An unexpected call puts Templeton back in the spotlight--and gets McNulty more attention than he expected. Bunk bucks at Landsman when ordered to help with the force's most recent red ball.

Nikki breaks up with Arthur and joins Mike for a hotel tryst, which goes awry when Mike wants to keep their relationship secret. Stacey plays a phone prank on Paul. Carter, James, and Stuart all go on a stakeout with Randall.

Webster dreams himself aboard the Starship Enterprise, where he explains the concept of feelings to Lt. Worf, as demonstrated in clips from the series' six seasons.

The FBI enlists Kimmy's help when former mole woman Gretchen tries to start a cult of her own. Titus is stricken with a strange disease.

The worlds of Disney Channel's "That's So Raven," "The Suite Life of Zack and Cody," and "Hannah Montana" collide.

Westphall, Craig and Auschlander go to the bar "where everybody knows your name," manned by a skeleton staff (Carla plus patrons Norm and Cliff). During the meeting at Cheers, Westphall announces he is quitting medicine. Craig later meets an old mentor who is suffering from advanced dementia and doesn't recognize him.

Carly Shay is pumped about having a boyfriend. Little does she know that he has another girlfriend: Tori Vega. The two girls meet at a party and decide to get revenge on Steven.

The Monitor sends Harbinger to gather the worlds' greatest heroes - Supergirl, The Flash, Green Arrow, Batwoman, White Canary, The Atom and Superman - in preparation for the impending Crisis. With their worlds in imminent danger, the superheroes suit up for battle while J'onn and Alex recruit Lena to help them find a way to save the people of Earth-38.

The group uses Ray's invention to track new recruits to help save the universe. The Monitor sends Iris, Clark and Lois in search of a mysterious Kryptonian, while Kate and Kara head out to find Bruce Wayne. In addition, Mia challenges Sara, Rory discovers a hidden talent, and Lex Luthor returns.

Pariah enlists Black Lightning to help stop the Anti-Monitor. Oliver and Diggle return to a familiar place.

Stuck in the Vanishing Point, the Paragons search for a way to escape; Oliver reveals that he has become something else; the origin stories for The Monitor and Anti-Monitor are revealed.