The Metropolitan Opera continues its free nightly streams via Met Opera on Demand (search for it online). This week is “Viewers’ Choice,” with Philip Glass’s Akhnaten on Thursday, March 18th; Rossini’s Il Barbiere di Seviglia on Friday, March 19th; Tchaikovsky’s Eugene Onegin on Saturday, March 20th; and Handel’s Agrippina on Sunday, March 21th. Each performance is available for 24 hours starting at 7:30 p.m.