On "The Tonight Show," Olympic curlers Becca and Matt Hamilton, a brother-and-sister duo, joined Jimmy Fallon and Jason Sudeikis for an early Olympics.
Teddi Mellencamp Arroyave, daughter of music legend John Mellencamp, is the latest addition to "The Real Housewives of Beverly Hills."
On "The Tonight Show Starring Jimmy Fallon," Anna Kendrick got to join Jimmy Fallon and The Roots in singing "Christmas (Baby Please Come Home)" along with the R&B songstress Darlene Love.
On "The Great Christmas Light Fight," the Birkett family from Scottsdale, Ariz., had to move their display after they were hit with criminal charges.
On "Watch What Happens Live With Andy Cohen," Anderson Cooper and Andy Cohen talked about how they met — being set up on a blind date.
Adam Driver stopped by "The Late Show With Stephen Colbert" for a little "Star Wars" improv using Rey and Kylo Ren figurines.
Ed Sheeran joined Taylor Swift to sing for the time live their new song, "End Game," at the iHeartRadio Jingle Ball.
The Real Housewives of N.J. were on a trip to Italy and proved that their restaurant fights aren't just limited to American soil.
On "The Late Late Show With James Corden," Harry Styles took over for James Corden, after Corden's wife gave birth to their daughter.
On "Gwen Stefani's You Make It Feel Like Christmas" special, things got pretty adorable during her duet with Blake Shelton.
On "The Late Show With Stephen Colbert," Matt Damon recalled "Good Will Hunting" and the memories that have now become bittersweet.
On “The Great Christmas Light Fight,” Carter Oosterhouse went to Dayton, Texas, and fell in love with the Wright family's beautiful Christmas light display made to inspire victims of Hurricane Harvey.
Antoinette Love came back for Season 3 of "The Great American Baking Show" after her time on Season 2 was cut short by the loss of her father.
On "The Late Show With Stephen Colbert," Ed Helms and Stephen Colbert rekindled an old bathroom feud that dated back to their time on "The Daily Show."
On "Watch What Happens Live With Andy Cohen," the host teased Sam Smith about his love for Prince Harry, and Smith recalled t when he met the ginger prince.
On "The Tonight Show Starring Jimmy Fallon," the host got into the Christmas spirit by putting on a Bruce Springsteen costume and rocking the crowd with a Trumpy version of "Santa Claus is Coming to Town."
On "The Great Christmas Light Fight," the Gaddy family used junk for their impressive light display that spanned their seven-acre property.
On “The Carol Burnett 50th Anniversary Special,” Jim Carrey joined the comedy legend to reminisce about the sweet letter that he sent his hero back when he was only 10 years old.
The K-pop boy band BTS stopped by "The Late Late Show With James Corden" to play a game called "Flinch" where fruit was shot at them while they stood behind a glass wall.
On “The Tonight Show Starring Jimmy Fallon,” John Boyega responds to rumors that Prince Harry and Prince William might have cameos in the upcoming “Star Wars: The Last Jedi.”