Radio’s most famous broadcast celebrates — if that’s the right word — its 65th anniversary this Halloween eve, a literal and figurative dramatic presentation that shook the nation from New York to Concrete, Wash. The CBS Radio network’s production of H.G. Wells’ science-fiction novel “The War of the Worlds” aired on Oct. 30, 1938, locally on KIRO and KVI (both were CBS affiliates at the time). The P-I listed the production, part of “Mercury Theater of the Air,” as one of the “best bets.”