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"Oh, Brother...She's My Sister" is the eighteenth episode from the fourth season of Barney & Friends.


As Barney and the children show how family unity can be fun, Baby Bop and BJ are having a disagreement. Their child-like spat results in each vowing not to speak to the other. Barney and the children try to soften their hard feelings by stimulating each to reflect on the positive sides of the other's personality. While Baby Bop and BJ are tussling over the book, "The Baby Sister", written by Tomie dePaola, Tomie arrives and offers to read it to everyone. Tomie's book and the surprise arrival of Tomie's real baby sister, Maureen, motivate the young dinos to make up.

Stories: The Baby Sister


  1. "Barney Theme Song"
  2. "Where is Family?"
  3. "When I Get Mad"
  4. "Bumpin' Up and Down"
  5. "Big and Little"
  6. "Everyone is Special"
  7. "Books Are Fun!"
  8. "The Sister Song"
  9. "I Love You"



Baniwa Chingudeul

  • In the Korean co-production of Barney & Friends, Baniwa Chingudeul, BJ and Baby Bop give a reason for their argument unlike the material its based on. Baby Bop was dancing to "A Silly Hat" while BJ was trying to read a book. BJ turned off the music which starts the argument between the two characters.
  • After the song "Books are Fun", Barney reads a different story rather than the one Tomie dePaola's reads. Following that, Baby Bop cries out loud and she and BJ make up on their own.

International edits

In some international versions, this episode was shortened.

1998 release of "Oh, Brother...She's My Sister".

Home media

  • This episode was released with "Good, Clean Fun!" in a Barney 2 video-pack as well as separately in 1998.


  • The episode marked:
    • The third and final appearance of Tomie dePaola on Barney & Friends.
    • The only time Tomie appeared with Baby Bop, Ashley, Alissa, Jeff, and Robert.
    • One of the extremely rare times that BJ calls Baby Bop by name. After BJ reviews the book "The Stinky Skunk and the Elephant's Trunk," he states "I used to like to read this to Baby Bop."
  • This episode aired on the elventh birthday of Trevor Morgan, who portrayed Cody in Barney's Great Adventure.
Season Four episodes
"First Day of School" • "Is Everybody Happy?" • "Pennies, Nickels, Dimes" • "We've Got Rhythm" • "Tick Tock Clocks!"
• "Waiting For Mr. MacRooney" • "Let's Build Together" • "It's Tradition" • "A Picture of Health" • "Play Ball!"
• "A Different Kind of Mystery" • "Going On A Bear Hunt" • "Let's Eat" • "Tree-Mendous Trees" • "Good, Clean Fun!"
• "Easy, Breezy Day!" • "All Mixed Up" • "Oh, Brother...She's My Sister" • "Once A Pond A Time" • "E-I-E-I-O"