released a 1999 clip of O'Donnell saying she had "dabbled" in witchcraft.

"I dabbled into witchcraft. I never joined a coven," she said on ABC's Politically Incorrect. "One of my first dates with a witch was on a satanic altar, and I didn't know it. I mean, there's little blood there and stuff like that."

Debate about O'Donnell's past was reignited several weeks later when she released an ad declaring, "I am not a witch."

O'Donnell told ABC's Jonathan Karl Thursday that the ad was a mistake.

"Any regrets in doing the ad?" asked Karl. "Because that really did raise it again."

"Yeah," answered O'Donnell. "You know I haven't publicly stated this and I don't know if I'll get in trouble for saying that but our intention was to kill it and that's not what happened."

O'Donnell joked that she would be dressing up as Dorothy from "The Wizard of Oz" for Halloween.