Interviewer: People always talk about the camaraderie on MAS*H, Alan, but I want to know about the single hardest you ever laughed on that set.

Alan Alda: Oh, wow. You are taking me back down an expensive memory lane.

One particular night stands out, involving the legendary Harry Morgan.

Harry brought an incredible, old-school Hollywood professionalism. He was always prepared and completely dependable.

But Harry also possessed this wicked, mischievous sense of humor that could absolutely demolish a room because he could deliver absurdity with a completely straight face.

We were filming an operating room scene late on a Friday night. Now, you have to understand the reality of shooting those OR scenes.

They were brutal. We were packed into this tiny, enclosed set under massive, incredibly hot studio lights. We were wearing heavy surgical gowns, caps, and masks.

The air was thick, it was past midnight, and everyone was completely exhausted. When you get that tired, you enter this zone of hypersensitivity where anything can tickle you. We called it the church giggles.

We were shooting a highly dramatic, intense sequence where a patient was in critical condition. The script required total gravity.

The camera was doing a slow, continuous panning shot across the entire room, moving from table to table. It was a complicated take that took hours to set up.

The director kept reminding us how important it was to get this right on the first try because we were running into costly overtime.

The room fell completely silent. The camera slowly ground along its tracks, tracking past me, then past Mike Farrell, moving toward Harry, who was looking incredibly stern.

The tension was palpable as he prepared to deliver his critical line.

And that’s when it happened.

Harry was supposed to look down at the patient and say a deeply serious line about an arterial clamp or an anastomosis.

Instead, he looked straight into the camera’s direction, completely deadpan, and delivered a line filled with absolute gibberish medical jargon that he had completely made up on the spot.

He said it with the most intense, commanding military authority you have ever heard in your life.

It sounded something like, “We need to secure the bilateral circum-frisbee before the gastro-intestinal flugelhorn collapses!”

For a second, the room just hung in this stunned silence because his delivery was so utterly convincing.

I looked at Mike Farrell. Mike’s eyes were wide with pure panic because he knew what was coming.

Mike’s shoulders started to twitch. That was the trigger.

A tiny, muffled snort escaped from Mike’s mask.

That was it. The dam broke.

I completely lost it. I let out this loud, wheezing laugh that echoed through the silent set.

Within two seconds, the entire operating room exploded.

The extras playing nurses dropped their props. The actors at the other tables collapsed over their fake patients.

The director, Burt Metcalfe, yelled cut, but he wasn’t angry yet. He just thought it was a standard flub.

He laughed a bit and said, “Okay, let’s reset. Harry, watch the jargon. Let’s do it again.”

The camera slowly panned across the room again. It moved past me. It moved past Mike.

It landed on Harry.

Harry looked down, perfectly serious. He opened his mouth.

And he said the exact same ridiculous line again, but this time with even more dramatic urgency.

He looked like he was about to cry from the sheer gravity of the fictional flugelhorn.

This time, the escalation was immediate.

The camera operator, a great guy who usually had nerves of steel, started laughing so hard that the physical camera began to shake on its tracks.

If you look at the raw footage, the entire frame just starts bobbing up and down.

Burt yelled cut again, and this time he walked onto the set, throwing his hands in the air.

He looked at Harry and said, “Harry, please. We are losing the light, we are losing the budget. Just say the line as written.”

Harry looked at him with this beautifully innocent, bewildered expression.

He pulled down his mask and said, “Burt, I am saying what’s on the page. I think your script is defective.”

Of course, he knew exactly what he was doing. He was keeping us loose because we had been working for fourteen hours straight.

But his innocence just made it worse.

We tried to shoot that sequence four more times.

Every single time the camera got close to Harry, someone would squeak, and the whole room dissolved all over again.

It became a chain reaction. If I didn’t laugh, Mike did. If Mike didn’t laugh, one of the background actors did.

We spent thousands of dollars of 20th Century Fox’s money just trying to get Harry Morgan to say a legitimate medical word.

Eventually, Burt sent us away for half an hour just so we could stop giggling.

We all just sat around the commissary drinking lukewarm coffee, wiped out, but bonded by this ridiculous moment of shared weakness.

When we finally got the take, we had to do it with Harry facing entirely away from the camera so you couldn’t see if he was smiling or not.

It became one of those legendary stories among the cast and crew.

Whenever we were having a rough, exhausting shoot in later seasons, someone would whisper something about a circum-frisbee, and it would instantly boost everyone’s morale.

That was the magic of Harry. He knew exactly when we were hitting a wall, and he used his own brilliant, deadpan absurdity to save our sanity, even if it drove the directors crazy.

Looking back, those late-night giggles are honestly some of my favorite memories from the entire eleven years we spent making that show.

There was nothing quite like the joy of completely ruining a serious scene with the people you loved.

Did you ever get the uncontrollable church giggles during a completely inappropriate moment?