You know, people always ask me about the energy on that set, especially after I came on board full-time in season four.

We were sitting in this quiet, dimly lit podcast studio a few years back, just doing a retrospective on classic television, when the host looked over his notes and asked me a question I hadn’t heard in decades.

He didn’t ask about the heavy, emotional episodes like the finale, or how we handled the transition from McLean Stevenson to my character, Colonel Potter.

Instead, he leaned into the microphone, smiled, and asked if there was ever a time when the straight-faced, old-school professional Harry Morgan completely lost his composure during a take.

The moment he said that, a specific memory hit me so fast I could practically smell the dust of the Malibu ranch and the sweat under those heavy olive drab fatigues.

I just started laughing right there at the microphone because that memory is etched into my brain forever, and it all came down to a single, stubborn prop.

It was during the filming of an early episode for me, where Colonel Potter is supposed to be establishing his authority while also showing the regular burdens of command.

The scene was set inside Potter’s office, which was always a bit cramped with the desk, the maps, and all the official military paperwork scattered around.

We had been shooting since early morning, the heat was rising inside the soundstage, and everyone was getting to that vulnerable, exhausted state where the tiniest disruption can trigger a collective meltdown.

The director wanted a very specific, seamless piece of business where I walk into the office, deliver a stern line of dialogue, and immediately pick up the old-fashioned, heavy black telephone receiver on the desk to place an official call.

It sounded incredibly simple on paper, just a standard piece of dramatic blocking to keep the momentum of the scene moving forward.

We all took our places, the assistant director called for quiet on the set, and the camera started rolling on what should have been a routine two-minute take.

Alan Alda and Mike Farrell were standing just outside the doorway, waiting for their cues to react to whatever command Potter was about to issue.

I stepped into the frame, completely locked into the stern, decorated mindset of Sherman T. Potter, feeling the weight of the character.

I marched directly over to the wooden desk, looked straight ahead with absolute military precision, and delivered the opening lines flawlessly.

The tension in the room was palpable because the scene had a serious undertone, and everyone in the crew was locked in, watching the masterclass in discipline.

I reached down with total confidence to grab the telephone receiver, intending to bring it swiftly to my ear to continue the commands.

But as my hand clamped down on the plastic and I pulled upward, something went completely wrong with the physics of the prop.

The cord had somehow snagged underneath the heavy wooden desk leg, completely anchoring the receiver to the furniture.

Instead of a smooth, authoritative motion, the sudden resistance yanked my hand downward, causing my knuckles to rap sharply against the wood.

I didn’t break character right away, determined to salvage the take like the seasoned professional I was.

I planted my feet, gripped the receiver with twice the force, and gave it another massive, impatient tug.

And that’s when it happened.

The sheer force of that second, desperate yank didn’t free the cord from the desk leg; instead, it launched the entire telephone base straight into the air like a catapult.

The heavy black unit flew off the desk, hit me square in the chest, and the receiver bounced wildly off my chin with a loud, hollow thud that echoed through the entire quiet soundstage.

For a fraction of a second, I stood there completely stunned, frozen in place with my eyes wide, still trying to hold onto the stern, no-nonsense dignity of Colonel Sherman T. Potter while a piece of vintage communications equipment battered my face.

The illusion of the tough-as-nails regular army veteran instantly shattered into a thousand pieces.

Alan Alda, who was watching from the edge of the set, let out this strange, high-pitched squeak as he tried desperately to swallow his own laughter, his face turning bright red.

Mike Farrell clamped his hands over his mouth, but it was too late; the absolute absurdity of the regular army colonel getting beaten up by his own office equipment was too much for anyone to handle.

I dropped the phone, looked directly at the camera, and let out this roaring, booming laugh that completely filled the room, instantly breaking the spell of the serious scene.

Once I started laughing, the entire room just erupted into absolute chaos.

The director threw his hands in the air, yelling for a cut, but he was laughing so hard he could barely get the word out.

The camera operators were shaking so violently that the frame was bouncing up and down, completely ruining any chance of saving the footage.

The grips and the script supervisors were leaning against the walls, wiping tears from their eyes because nobody expected the dignified, veteran actor Harry Morgan to get physically bested by a prop phone.

It took us a solid ten minutes just to clear the air because every time we tried to reset the scene and put the telephone back on the desk, someone would start snickering again.

I remember Alan walking over to me, patting me on the back, and asking if I needed medical leave from the communications department.

What made it truly unforgettable was that it set the tone for my entire relationship with the cast and crew from that point forward.

Before that moment, everyone was a little intimidated by my background and my serious demeanor, wondering if I would be a strict, rigid presence on the set.

That ridiculous prop malfunction showed everyone that I could laugh at myself, that I wasn’t precious about my dignity, and that I was completely ready to participate in the beautiful madness that made MAS*H so special.

We eventually got the take right on the next try, but for the rest of the season, the prop master would occasionally tie a little piece of bright red yarn around the phone cord just to remind me to check my surroundings before acting tough.

Looking back on it now during that podcast, I realized that those little moments of shared vulnerability and unexpected comedy were the exact reason why the show possessed such immense heart.

We were a family out there in the dirt and the heat, and sometimes, a flying telephone is exactly what you need to bring everyone closer together.

Do you have a favorite behind-the-scenes blunder from a classic television show that completely changed how you view the characters?