The documentary “Yoo Hoo Mrs. Goldberg” is a heimish and a fascinating trip down memory lane for those of us who remember Gertrude Berg on television, schmoozing with her neighbors, her ample arms perched on the windowsill. Before her success in the salad years of television, she and her fictive family “The Goldbergs” were on radio, giving voice to the early version of the family sitcom that became the meat and potatoes of programming. This fine biopic limns that career, revealing the elegant Park Avenue businesswoman behind the scenes. No surprise that the originator of the uber-Jewish mom, Molly Goldberg, was a model of multitasking, creator, writer, producer, and star. To make a feminist statement would be beside the point. She was a mensch. Ambitious and talented, Berg saw media as a frontier during the early part of the 20th century when America saw the stock market crash, ignored the plight of Jews during the Holocaust, and witnessed the witch-hunt known as the McCarthy era. Berg's character is best seen when she stood by her co-star Philip Loeb when he was black-listed; losing sponsors, she refused to fire him until she could no longer keep him on the show and survive. A heartbreak to everyone, Philip Loeb later committed suicide. And the slot held by “The Goldbergs” went to a new show, “I Love Lucy.” “Yoo Hoo, Mrs. Goldberg” follows upon Aviva Kempner's distinguished achievement in “The Partisans of Vilna” and “The Life and Times of Hank Greenberg.” Already a hit where it is screened in Manhattan, “Yoo Hoo, Mrs. Goldberg” opens this week in Sag Harbor. Don't miss it

Regina Weinreich