Last week in Hollywood, as part of the Television Critics Association press tour, Warner Bros. held a salute to Chuck Lorre, producer of four current CBS sitcoms – and, between the press conference and the party, screened an upcoming episode of one of those comedies. Not the long-running Two and a Half Men, or the top-rated The Big Bang Theory, or even Mike & Molly, but Lorre’s newest show, Mom, starring Anna Faris and Emmy-winning Allison Janney. Tonight, CBS televises that episode previewed to critics – and without revealing anything else about it, I can say there was a reason for the studio to be proud, and a reason you should watch. Kevin Pollak returns as guest star.