President Bush's State of the Union message will be aired live tonight on the major networks. Bush's address will be broadcast at 9 p.m. EST on ABC, CBS, NBC, CNN and C-Span, followed by a Democratic response from House Speaker Thomas S. Foley. Some local affiliates of PBS and Univision, a Spanish international network, also will carry the address and response, either live or as a tape-delayed broadcast. C-Span will rebroadcast the address at 11:30 p.m. EST.