"Is There Sex After Marriage?" That is the question at Two Roads Theater. Also, Shakespearean characters take part in "Classic Couples Counseling" at the Secret Rose, and you-know-who has got some 'splaining to do in "I Love Lucy: Live on Stage" at Segerstrom Center.
Jim Henson's Sid the Science Kid: Live! Family-friendly show featuring characters from the PBS series. La Mirada Theatre for the Performing Arts, 14900 La Mirada Blvd., La Mirada. Sunday, 1 and 3:30 p.m. $13.50-$20. (562) 944-9801.
Siro-A Performance-art troupe from Japan mixes electronic dance music, visual effects and illusions. Carpenter Performing Arts Center, 6200 Atherton St., Long Beach. Sunday, 5 p.m. $40. (562) 985-7000.
Sochi 2014 Staged reading of Tess Berry-Hart's new docudrama about anti-gay discrimination in Russia. Eclectic Company Theatre, 5312 Laurel Canyon Blvd., Valley Village. Sunday, 6:30 p.m. Donation. (818) 508-3003.
I Love Lucy: Live on Stage Hit show re-creates the filming of two episodes of the beloved 1950s sitcom. Segerstrom Center for the Arts, 600 Town Center Drive, Costa Mesa. Tue.-Fri., 7:30 p.m.; Sat., 2 and 7:30 p.m.; next Sun., 1 and 6:30 p.m. $29-$99. (714) 556-2121.
Forgotten Return engagement of Irish writer-performer Pat Kinevane's solo show about elderly people in Ireland. Odyssey Theatre, 2055 S. Sepulveda Blvd., West L.A. Thu.-Fri., 8 p.m.; next Sun., 5 p.m.; ends April 6. $25, $30. (310) 477-2055.
God Only Knows U.S. premiere of Hugh Whitemore's thriller about British tourists caught up in a biblical mystery in Italy. Theatre 40, 241 S. Moreno Drive, Beverly Hills. Thu., Sat., 8 p.m.; next Sun., 2 p.m.; ends April 20. $24, $26. (310) 364-0535.
The Memorandum Santa Monica Repertory Theater stages Vaclav Havel's classic satire of bureaucracy. Miles Memorial Playhouse, 1130 Lincoln Blvd., Santa Monica. Fri.-next Sun., 7:30 p.m.; ends April 20. $20-$50. (213) 268-1454.
Classic Couples Counseling World premiere of Lloyd J. Schwartz's comedy about a therapist with some of Shakespeare's most famous couples for clients. Secret Rose Theatre, 11246 Magnolia Blvd., North Hollywood. Fri.-Sat., 8 p.m.; next Sun., 7 p.m.; ends April 27. $10, $20. (323) 960-5774.
Is There Sex After Marriage? World premiere of Jeff Gould's comedy about a long-married couple who accidentally find themselves at a swingers' party; for mature audiences. Two Roads Theatre, 4348 Tujunga Ave., Studio City. Fri.-Sat., 8 p.m.; next Sun., 7 p.m.; ends May 4. $25, $34. (323) 960-5770.
Lend Me a Tenor Ken Ludwig's classic backstage farce about an opera company. Actors Co-op, David Schall Theatre, 1760 N. Gower St., Hollywood. Fri.-Sat., 8 p.m.; next Sun., 2:30 p.m.; ends May 4. $20-$30. (323) 462-8460.
The Petrified Forest Robert E. Sherwood's classic drama about mobsters holed up in a roadside cafe. Theatre West, 3333 Cahuenga Blvd. W., L.A. Fri.-Sat., 8 p.m.; next Sun., 2 p.m.; ends April 27. $5-$34. (323) 851-7977.
Riddance World premiere of Sissy Boyd and Wesley Walker's surreal exploration of the mother-daughter relationship. MorYork Gallery, 4959 York Blvd., Highland Park. Fri.-Sat., 8 p.m.; next Sun., 2 p.m.; ends April 6. $15. (323) 660-8998.
HAM: Slices of a Life Broadway star Sam Harris performs in this one-man show. L.A. Gay & Lesbian Center's Renberg Theatre, 1125 N. McCadden Place, L.A. Sat.-next Sun. $25. (323) 860-7300.
In the Mood: A 1940's Musical Revue! A celebration of the Big Band era. La Mirada Theatre for the Performing Arts, 14900 La Mirada Blvd., La Mirada. Sat., 2 and 8 p.m. $20-$70. (562) 944-9801.
Our Abyssinia Staged reading of Robert Riemer's fantastical new drama about a dysfunctional family. Zombie Joe's Underground Theatre Group, 4850 Lankershim Blvd., North Hollywood. Sat.-next Sun., 2 p.m. $15. (818) 202-4120.
Selected Shorts: Drama at Dinner Michael Imperioli, Amber Tamblyn, Jane Kaczmarek and others read food-themed tales by authors including Haruki Murakami, Lewis Carroll, Roald Dahl, Henry Miller and Nora Ephron. Getty Center, Harold M. Williams Auditorium, 1200 Getty Center Dr., L.A. Sat., 3 and 7 p.m.; next Sun., 3 p.m. $35. (310) 440-7300.
The Seagull Parson's Nose Theater stages Chekov's tragicomedy of romantic and artistic frustration. Lineage Performing Arts Center, 89 S. Fair Oaks Ave., Pasadena. Sat., 7 p.m.; next Sun., 3 p.m. Pay what you will. (626) 403-7667.
L.A. Deli Sam Bobrick's new comedy about showbiz types who frequent a local eatery. Marilyn Monroe Theatre at the Lee Strasberg Theatre and Film Institute, 7936 Santa Monica Blvd., West Hollywood. Sat., 8 p.m.; next Sun., 3 p.m.; ends April 27. $30. (323) 960-7738.
Patti LuPone The two-time Tony winner performs. Renée and Henry Segerstrom Concert Hall, 600 Town Center Drive, Costa Mesa. Sat., 8 p.m. $49-$109. (714) 556-2121.
It's Magic! Illusionists from around the world perform. Cerritos Center for the Performing Arts, 12700 Center Court Drive, Cerritos. Next Sun., 3 p.m. $35-$65. (562) 467-8818.
A Song at Twilight An elderly, closeted writer has a confrontation with his ex-mistress in Noel Coward's drama; with Bruce Davison and Sharon Lawrence. Pasadena Playhouse, 39 S. El Molino Ave., Pasadena. Next Sun., 5 p.m.; ends April 13. $38-$72. (626) 356-7529.
I'll Take Murder for $25 Million Interactive whodunit set at a corporate shindig. Sierra Madre Playhouse, 87 W. Sierra Madre Blvd., Sierra Madre. Next Sun., 7 p.m. $20. (626) 355-4318.