Photo: Bruce Glikas/FilmMagic In 2005, Good Night and Good Luck conquered film, twenty years later, it’s taking over Broadway, and next month, George Clooney ’s Edward R. Murrow will take over the final entertainment boss: live television. Clooney’s Good Night and Good Luck will be the first Broadway play performance to be televised live; the penultimate show will be broadcast on CNN on June 7 at 7 pm ET. “I can’t tell you how exciting it is to do something that’s never been done,” Clooney