Gayle King used a gay slur while retelling a joke on live TV. The broadcast journalist was interviewing comedian Matteo Lane — who is openly gay — about his new cookbook, “Your Pasta Sucks,” when she quoted one of his jokes back to him. “You embrace being gay and your homosexuality,” King, 70, said to Lane, 38, who had been freely discussing his sexual orientation throughout the chat. “And I’m wondering — where did this come from? The funniness that you were able to combine with cooking and and your stand-up, too?” Lane explained that he comes from “a large...