Less than two hours after Barry Diller extolled the value of his Aereo streaming service on the same stage, the co-chair of Disney Media Networks and president of the Disney/ABC Television Group took a different view. “I think it is wrong. I think it is illegal, I think it is opportunistic piracy,” Anne Sweeney said today. “It’s taking advantage of our content”, she added. ABC is one of the broadcasters suing the Diller-backed Aereo for copyright infringement. Earlier in the day, Diller had spoken of how he was glad the broadcasters had sued him because of all the attention it brought the small but growing service.