If you’re a fan of MAS*H, you likely cherish the show for its sharp wit, heartfelt drama, and unforgettable characters. The groundbreaking series, set during the Korean War, captivated audiences with its blend of humor and pathos, becoming a cultural phenomenon. However, even this beloved show wasn’t immune to its share of mistakes, bloopers, and quirks.

As someone who grew up with MAS*H, I thought I’d seen it all—until I revisited the series and discovered a treasure trove of little-known flubs and fascinating behind-the-scenes facts. Let’s take a closer look at some of the most intriguing errors and anecdotes that make this classic series even more endearing.

1. Radar’s Left Hand: A Hidden Detail

Gary Burghoff, who played the lovable Cpl. Walter “Radar” O’Reilly, had a physical condition called Poland Syndrome, which caused his left hand to be underdeveloped.

While this didn’t affect his performance, the show’s creators took great care to hide his hand during scenes. Radar is often seen holding a clipboard, tucking his hand into his pocket, or using clever camera angles to keep the focus on his character’s charm rather than his hand. It’s a subtle touch you might not notice until someone points it out!

2. A Helicopter Out of Time

MAS*H took great pride in its historical accuracy, but even this iconic show wasn’t free from anachronisms. In the season 2 episode “For the Good of the Outfit”, a Bell Huey UH-1 helicopter can be seen in Henry Blake’s office. The catch? The Huey didn’t take its first flight until 1956—three years after the Korean War ended.

This timeline slip might go unnoticed by casual viewers, but military history buffs were quick to spot the error.

3. The Shocking Death of Lt. Col. Blake

One of the most memorable—and controversial—moments in MAS*H history was the untimely death of Lt. Col. Henry Blake. McLean Stevenson, who played Blake, decided to leave the series in 1975. In response, the writers crafted a shocking ending: Blake’s plane was shot down on his way home.

The scene, which aired in the episode “Abyssinia, Henry”, left viewers devastated. The decision was meant to drive home the harsh realities of war, but it sparked an outcry from fans and even led to hate mail for the show’s creators. The backlash was so intense that producers vowed never to write off a character in such a tragic way again.

4. Klinger: From One Episode to Fan Favorite

Jamie Farr’s character, Maxwell Q. Klinger, was originally meant to appear in just one episode as a soldier trying to get discharged by wearing women’s clothing. However, Farr’s comedic timing and endearing portrayal of Klinger won over the audience and producers alike.

Klinger became a series regular, with his antics adding levity to the show’s heavier moments. Fun fact: the dog tags Klinger wore on the show were actually Farr’s real military dog tags from his time in the service.

5. Loretta Swit’s Nails: A Glamorous Goof

Major Margaret “Hot Lips” Houlihan, played by Loretta Swit, was known for her no-nonsense demeanor and dedication to her work. However, one detail often broke character: her nails. In several episodes, Swit sports long, manicured nails—hardly practical for a head nurse in a wartime medical unit.

This glamorous detail may not align with military regulations, but it’s a fun reminder of the blend of realism and Hollywood flair that made MAS*H so unique.

6. Hawkeye’s Ever-Changing Backstory

Dr. Benjamin Franklin “Hawkeye” Pierce, played by Alan Alda, is the heart of MAS*H. But if you pay close attention, you’ll notice that his backstory shifts over the course of the series.

Initially, Hawkeye is from Vermont, with both parents alive, a married sister, and even a nephew. As the show progresses, his origin story changes: he’s suddenly from Crabapple Cove, Maine, an only child, and his mother died when he was young. These inconsistencies are easy to overlook, but they highlight the evolving nature of long-running TV series.

7. The Prophetic Tumor Joke

In the season 5 episode “Hepatitis”, Hawkeye examines Frank Burns (played by Larry Linville) and jokes about a “pea-sized tumor under his sternum.” Tragically, years later, Linville passed away from a malignant tumor under his sternum.

The eerie coincidence adds an unsettling layer to this otherwise humorous episode, serving as a reminder of the unpredictable nature of life.

8. Margaret’s Nickname: A Love-Hate Relationship

Loretta Swit wasn’t a fan of her character’s infamous nickname, “Hot Lips.” While it was meant to reflect Margaret’s fiery personality, Swit felt it reduced her character to a stereotype. Over time, Swit worked with the writers to develop Margaret into a more complex and respected figure, moving beyond the nickname that initially defined her.

9. A Hidden Connection: Alan Alda’s Humor

Alan Alda’s contributions to MAS*H went far beyond acting. He also wrote and directed several episodes, bringing his unique humor and insight to the series. In the episode “Comrades in Arms”, Winchester complains about Hawkeye and B.J. singing in the shower, prompting Hawkeye to quip, “Don’t blame me; I didn’t write this stuff.”

The twist? Alda actually did write that episode, making the line a clever inside joke.

10. The Longest Kiss in TV History

MAS*H’s finale, “Goodbye, Farewell and Amen”, is still one of the most-watched episodes in television history. One standout moment? The farewell kiss between Hawkeye and Margaret.

Loretta Swit described it as “the longest kiss in TV history,” a bittersweet goodbye that captured the emotional weight of the series’ conclusion. The kiss symbolized not just the end of a relationship, but the end of an era for fans and characters alike.

Conclusion: A Legacy That Endures

MAS*H remains a cultural touchstone, celebrated for its wit, heart, and unflinching portrayal of war’s human toll. These little-known mistakes and bloopers only add to the show’s charm, reminding us that even a masterpiece isn’t perfect. Whether you’re a lifelong fan or discovering the series for the first time, these quirks and behind-the-scenes stories offer a fresh perspective on a timeless classic.

So, the next time you watch MAS*H, keep an eye out for these fun details. They might just make you appreciate this iconic show even more.