The Met streams all-star classics this weekend

The Metropolitan Opera Theatre goes into the Wayback, machine for this weekend’s livestream concerts, including a 2010 production of Bizet’s Carmen on Friday, Dec. 4; a 1988 presentation of Strauss’s “Ariadne auf Naxos” featuring Jessye Norman and Kathleen Battle on Saturday, Dec. 5; and Puccini’s “Tosca” from 1978, with Luciano Pavarotti, on Sunday, Dec. 6. All at 7:30 p.m. and free via metopera.org.