February 12, 19, 20. Last July vital venue Time & Space Limited (TSL) not only celebrated its 20th year of operations, it also marked its fifth season of presenting live high-definition broadcasts of the Met Opera. For the world-renowned company's premiere of "Nixon in China" the composer himself, John Adams, conducts his 1987 saga of the controversial American president's headline-making 1972 meeting with Communist leader Mao Tse Tung. Baritone James Maddalena stars in the title role. (Gluck's "Phigenie En Tauride" screens February 26 and March 5 and 6.) 1pm. $25, $15. Hudson. (518) 822-8100; www.timeandspace.org.