Ellen DeGeneres will play a lesbian in her upcoming CBS comedy series, but her sexual orientation will not be the focus of the show. "Ellen is going to be a gay woman, but it's not going to hit [you] over the head," CBS Television President Leslie Moonves told reporters yesterday. DeGeneres's comeback vehicle — which Moonves confirms will likely air next fall, not at midseason as originally planned — will feature the comedienne as a lesbian who returns to her hometown in the Midwest. (Working title: Normal, Nevada?)