The Chicago News Cooperative’s Meribah Knight joins Eight Forty-Eight to discuss the last-minute labor negotiations at the Joffrey Ballet. Then, as the final Harry Potter film opens Friday in Chicago, magician Clare T. Ashley shares her ideas for the weekend in the latest installment of The Weekly Guide. And host Alison Cuddy speaks with Dave Konopka, one of the members of Battles, a New York-based rock group with ties to Chicago. The band performs Friday at Pitchfork Music Festival in Union Park in Chicago.