WEDNESDAY • The Disney Concert Hall features a Holiday Sing-Along with husband-and-wife Judith Owen and Harry Shearer tonight at 8 PM. Tickets are $10-45. • It's another High Times Comedy Night at the Hollywood Improv, featuring Sarah Silverman, Zach Galifianakis, Al Madrigal, Matt Besser and Jasper Redd, starting at 8 PM. Tickets are $15.......