"Law and Order" episode idea; Andrea Yates (PHOTOS, VIDEOS) appeal. Andrea Yates' murder convictions for drowning her children should be overturned because the state's expert witness gave false testimony about working on a nonexistent episode of "Law and Order", her attorneys told a state appeals court Tuesday.

Yates was sentenced to life in prison in the 2001 deaths of three of her children after jurors rejected her insanity defense. She was not tried in the deaths of the other two. Psychiatrists testified that Yates suffered from schizophrenia and postpartum depression.

Her attorneys told a three-judge panel of the appeals court that she deserves a new trial because of 19 errors that were committed in her 2002 trial.

Yates' attorney Troy McKinney focused on expert witness Park Dietz, who McKinney said "told a whopper of a falsehood" when he said he consulted on an episode of the TV show "Law and Order" involving a woman found innocent by reason of insanity for drowning her children. Go here for more. Go here for photos and videos.