The Osmonds are reuniting this summer for a television special celebrating a half-century in the entertainment business. All seven Osmond siblings - Alan, Wayne, Merrill, Jay, Donny, Marie, and Jimmy - are scheduled to be on stage Aug. 13 and 14 for the show being videotaped at The Orleans Hotel Showroom, publicist Kevin Sasaki said from Los Angeles Thursday. Tickets for the live shows range from $75 to $125. "The Osmonds 50th Anniversary, starring The Osmond Brothers, with special guests Donny, Marie, and Jimmy," will be broadcast on PBS stations in March of 2008. "At first it was just a...