Foyle's War: "Masterpiece Mystery." "The Russian House," 9 p.m. Sun. "Killing Time," 9 p.m. May 9. "The Hide," 9 p.m. May 16, on KQED. World War II did come to an end in 1945, and so did "Foyle's War," sort of, in 2007. First it was canceled by ITV, proving that idiocy reigns as supremely in British TV as it does so often on these shores. After viewers complained and the supposed finale, "All Clear," drew significant ratings in its 2008 British telecast, ITV wisely saw the error of its ways and came to Horowitz, hat in hand, to ask...