Jimmy and Kaley Cuoco face off in a trivia game where the winner of each round gets a puppy to snuggle.

Actress and comedian Rebel Wilson stars in Senior Year, a film about a woman who has an accident during high school, and wakes up twenty years later with a desire to finish her degree. Of course, she finds that much has changed in the meantime!

ALF stands for Alien Life Form, and was the name of this nineteen eighties American sitcom and its main character. In this episode, ALF has promised to behave well for a week, taking to extremes a new role as a posh servant and chef. Now his host family is wishing for a return to normality.

“Elvis” opens the door to a nosy neighbor, and then has the difficult task of dissuading Alf, who still believes he’s in the presence of “The King.”

ALF has wandered into the home of Elvis Presley! At least that’s what he thinks based on the memorabilia that’s all around. And it doesn’t take long for “Elvis” himself to get home...

Hilarity ensues as Jimmy Fallon and Benedict Cumberbatch perform a ludicrous scene that brings together the script and the words that were chosen at random.

April senses that something is not right and returns to the office to find Ron alone and unable to leave his office.

Chris Pratt is a big star in the US, having acted in "Guardians of the Galaxy" and many other movies, but do New Yorkers even care?

Jimmy asks actor Benedict Cumberbatch to provide adjectives, nouns, interjections, and other words in order to write a scene that they will perform together.

Willie is sure he didn’t invite his boss to the party, and why are all his guests arriving in costume? Just as he guesses who might be responsible, ALF makes his entrance, masquerading as an old family friend.

Part two sees more celebrities “audition” to present the British Airways in-flight safety video, and have fun supporting "Flying Start." This initiative partners British Airways with the charity “Comic Relief” to help children all over the world.”

Ron and April find everything they need on a shopping trip to “Food and Stuff." Back in the office, April is less than impressed when Ron uses fishing as a metaphor in order to impart relationship advice.

ALF adopts the role of family psychologist, but however well-meaning his efforts, only succeeds in getting on everyone’s nerves!

April is back in the office and helping Ron avoid the citizens of Pawnee. He’s less happy, however, when she explains how he’s being tracked by online cookies, and that his privacy has been invaded on Google Earth.

Lindsay Lohan and Billy Eichner are very upset about the end of the TV show "How I Met Your Mother." Watch them let out their feelings by destroying a car.