This is all I know about the Yates news, and it sounds like an episode of LA Law (anything less realistic than Law and Order):

The three-member appeals court took exception to the testimony of prosectutors’ psychiatric witness, Dr. Park Dietz, who told the jury he had served as a consultant on an episode of the television drama Law & Order in which a woman drowned her children in the bathtub and was judged insane. He testified the show aired shortly before Yates drowned her five young children.
Prosecutors referred to Dietz’s testimony in his closing arguments of the trial’s guilt or innocence phase, noting that Yates regularly watched the show and that she had alluded to finding “a way out” when Dietz interviewed her in the Harris County Jail after the drownings.
But defense attorneys discovered no such episode was produced. As a result, both sides agreed to tell jurors that Dietz had erred in his testimony and to disregard that portion of his account.
Dietz later said he had confused the show with others and wrote a letter to prosecutors Thursday, saying, “I do not believe that watching Law & Order played any causal role in Mrs. Yates’ drowning of her children.”