The Tattle-Tale is the tenth episode of Season 2 of The Brady Bunch, and the 35th overall episode of the series. Written by Sam Locke and Milton Pascal and directed by Russ Mayberry, it first aired 4 December 1970 on ABC.
Cindy learns a lesson about discretion when her tattling nearly results in the breakup of Sam and Alice.
Cindy's constant tattling is becoming a problem, and her siblings start to avoid her. Carol and Mike discover that Cindy has been eavesdropping on private conversations and snooping into private affairs, and then talking about those instances, both which they try to tell her is wrong, especially as Cindy sees what she's doing as being fun. Their words don't seem to have any effect on her tattling which they hope is only a phase through which she is going. As her tattling continues, she begins to get ostracized by her siblings, who don't trust her. However, they all find that they cannot keep Cindy totally in the dark about every aspect of their lives.
Things reach a head after Cindy tells Sam that Alice was hugging the mailman and Sam misinterprets it. Alice was just very happy that a package came. She had been entering many contests and finally won one of them. The prize was a stereo system which was put in the family room and the first record the Bradys acquired was The Best of Gilbert & Sullivan.
- This episode is one of Susan Olsen's least favorites, as her real-life friends, unable to see the difference between real life and Brady Bunch, would shun her thinking she actually was a tattle-tale.
- Christopher Knight does not appear in this episode.