SEASON PREMIERE: Greg Poehler, Amy’s brother, returns for Season 2 of this enjoyably different summer series, loosely based on his own life. He plays Bruce, a show-biz accountant who falls in love with a beautiful blonde from Sweden – and impulsively follows her there, professes his love, and tries to settle down. Josephine Bornebusch plays the blonde in question, and she’s both beautiful and funny enough to make the premise believable and Welcome to Sweden delightful. And then, as an added bonus, there’s the fabulous Lena Olin as the woman’s insult-spewing, disapproving mother. If you missed this sitcom last summer, don’t repeat that mistake.