My biggest problem with M*A*S*H as I got older was that it was very elitist. I know the military enforces a sharp line between officers and enlisted that the show doesn’t even uphold so well, but the enlisted in the show were depicted as somehow less than human. Radar needed actual god-like powers to be appreciated; it’s easy to overlook but he doesn’t have everything the commanding officer needs simply be anticipating his needs well, but is actually a fairly powerful psychic. He’s called “Radar” because he knows when casualties are coming in by helicopter before anyone else, and not because of sharp hearing.
No, he hears the low thumping, rumble before anybody else. Otherwise he'd be warning the docs before the military ambulances pull into camp as well.
I live very close to a Marine airfield and every time a helicopter or an osprey approaches in the distance, in my best Radar voice, I mumble, "choppers...".
Usually when I have guests, they would look at me and say, "huh?".
To which I reply, "Give it a minute, it's the neighborhood watch on patrol..."
Sure enough, in a couple of minutes, the windows are rattling as they pass just a few hundred feet above and my guests are flying out the door with their camera phones.