This is a terrific episode. Long camera takes show us that Alan Alda is one of the finest actors ever, as his monologue runs for the entire episode, and there are very few cutaways--minutes of Hawkeye flow without any apparent effort. Fabulous performance. He should have definitely won an Emmy for this one.
I also have a great appreciation for the Korean family with whom he spends his time while waiting for someone to come and get him. They show their kindness, amusement and hospitality without a word. The expressions are priceless.
It was also a very brave experiment for the time... quite innovative.