Tonight - Thursday "My Name Is Earl" (NBC, 8:00 p.m.) Back-to-back new episodes. "Survivor: Cook Islands" (CBS, 8:00 p.m.) Castaways' loved ones arrive on the island to pull at heartstrings, somebody cuts a finger with a machete "Total Eclipse" (IFC, 8:40 p.m.) It's dueling poets, with Leonardo DiCaprio as Rimbaud and David Thewlis as Verlaine in this truly awful 19th-century costume drama. "CSI: Crime Scene Investigation" (CBS, 9:00 p.m.) Danny Bonaduce guest-stars, providing us......