I've been thinking about what Nerys said about MASH. I'm actually not surprised it didn't last as long as the real WWII. Expecting any tv series to last 9 years without becoming stale is really asking a lot. I mean, look at The Rifleman. It lasted so long that Miss Kitty went from a hot love interest into an old maid aunt. Along the way, they must have told the same stories a dozen times over. If it weren't for all of the Luddites in California the show would have been yanked after 5 years, tops, instead of lasting 22.