Dos Lesbos Be the first on your block to hear Tom Wilson Weinberg's new song "Lesbian Seagull." That ditty will be heard by millions when the MTV film Beavis and Butt-head Do America is released, but a select few can hear it now, in Houston, at the Group Theatre Workshop production of Terry Baum's comedic, two-character review. Opening tonight, 8 p.m. (Other shows listed in Thrills, Theater, Opening.) Lovett Inn, 501 Lovett Boulevard, 522-2204. $15.