The United Church of Christ has filed petitions with the FCC challenging the licenses of a CBS- and an NBC-owned TV station in Miami after their parent companies rejected a church-produced commercial. In a statement, the UCC said that it had filed the challenge because "there is substantial and material question as to whether the stations' parent companies, Viacom, Inc., and the General Electric Company, have operated the stations in the public interest." UCC spokeswoman Gloria Tristani said that the two stations, WFOR and WTVJ, were chosen because their licenses come up for renewal first. Tristani is a former FCC...