13 Classic TV Episodes That Defined Pop Culture in the ’70s

The 1970s was a golden era for television, producing some of the most groundbreaking and unforgettable moments in TV history. This decade saw sitcoms push boundaries, dramas take on real-world issues, and cliffhangers keep audiences on the edge of their seats.

From shocking plot twists to hilarious one-liners, these iconic episodes not only entertained millions but also left a lasting impact on pop culture. Let’s take a nostalgic trip back to 13 of the most defining television moments of the ’70s—episodes that still influence storytelling today.

1. M*A*S*H – “Abyssinia, Henry” (1975)

Few TV episodes have left audiences as stunned and emotional as this one. Airing on March 18, 1975, the episode follows Lieutenant Colonel Henry Blake’s discharge from the Korean War—only for the devastating twist to reveal that his plane was shot down, killing him.

For a show known for balancing humor with the realities of war, this moment was a gut punch that proved TV could be more than just entertainment. The unexpected loss of a beloved character made headlines and set a new standard for emotional storytelling in television.

Even today, this episode remains one of the most talked-about moments in TV history.

2. All in the Family – “Sammy’s Visit” (1972)

This episode, which aired on February 19, 1972, featured a hilarious and groundbreaking moment when Sammy Davis Jr. guest-starred as himself and ended up kissing Archie Bunker on the cheek.

At a time when race relations were still a sensitive topic in America, All in the Family tackled bigotry with humor, showing the stark contrast between Archie’s outdated views and the real world evolving around him.

The surprise kiss became one of the most iconic moments in sitcom history, proving that television could challenge societal norms while making audiences laugh.

3. The Mary Tyler Moore Show – “Chuckles Bites the Dust” (1975)

This Mary Tyler Moore Show episode, which aired on October 25, 1975, is one of the greatest sitcom episodes of all time, proving that comedy and tragedy can go hand in hand.

The newsroom mourns the unexpected (and ridiculous) death of Chuckles the Clown, and while everyone cracks jokes to cope, Mary insists on keeping things respectful—until she breaks down in uncontrollable laughter at his funeral.

This episode showcased how grief can manifest in unexpected ways, making it both relatable and hilarious. The episode’s masterful writing and comedic timing have cemented its place in TV history.

4. The Rockford Files – “The Real Easy Red Dog” (1975)

This Rockford Files episode, aired in 1975, helped define the modern detective show. Unlike other TV detectives, Jim Rockford wasn’t polished or glamorous—he was a laid-back, blue-collar private investigator with charm, wit, and plenty of bad luck.

In this fan-favorite episode, Rockford investigates a case full of unexpected twists, double-crosses, and classic detective action. The show’s blend of humor, realism, and action made it a blueprint for many detective dramas that followed.

Even today, The Rockford Files remains one of the most beloved crime shows of all time.

5. Roots – “Part I” (1977)

When Roots premiered on January 23, 1977, it changed television forever. The first episode introduced audiences to Kunta Kinte, an African man kidnapped and sold into slavery, marking the beginning of an emotional and brutally honest historical saga.

With record-breaking viewership, Roots forced difficult but necessary conversations about America’s history of slavery. Its impact was enormous, influencing future historical dramas and ensuring that these painful stories were not forgotten.

Decades later, Roots remains one of the most significant and powerful miniseries ever created.

6. Dallas – “Who Done It?” (1980)

Though it aired in November 1980, the cliffhanger that led up to this moment began in the late ’70s. When Dallas left audiences wondering “Who shot J.R.?”, it became the most famous TV mystery of all time.

The episode revealing the culprit became one of the most-watched broadcasts in television history, proving the power of a well-executed cliffhanger. The phrase “Who shot J.R.?” became a cultural phenomenon, even inspiring merchandise and news headlines.

This episode set the standard for season finales and suspenseful storytelling, influencing television for decades.

7. The Jeffersons – “Lionel Cries Uncle” (1975)

Airing on January 18, 1975, this episode of The Jeffersons delivered both hilarious and thought-provoking moments as Lionel Jefferson clashed with his uncle over cultural identity and assimilation.

With its sharp dialogue and fearless social commentary, the episode tackled real-life racial issues in a way that felt both authentic and entertaining. It proved that sitcoms could be both funny and meaningful, paving the way for future shows to address important topics.

Even today, The Jeffersons is remembered for its bold approach to social issues—and this episode is one of its finest examples.

8. Happy Days – “Fonzie’s Baptism” (1977)

When Happy Days aired this heartfelt episode on December 6, 1977, it showed a different side of Fonzie, the ultimate ‘cool guy’.

In an unexpected moment of vulnerability, Fonzie decides to get baptized, proving that toughness and faith can go hand in hand. His journey resonated with audiences, reinforcing themes of friendship, growth, and belonging.

The episode became one of the show’s most memorable, highlighting the warmth and sincerity that made Happy Days a timeless classic.

9. The Brady Bunch – “The Subject Was Noses” (1973)

If you’ve ever heard the line “Oh, my nose!”, you probably remember this classic Brady Bunch episode, which aired on February 9, 1973.

In this episode, Marcia Brady takes a football to the face, ruining her big date and delivering one of the most replayed and parodied moments in TV history.

This episode perfectly captured the simple joys and pains of teenage life, cementing The Brady Bunch as one of the most endearing family sitcoms of all time.

10. Columbo – “Murder by the Book” (1971)

Airing on September 15, 1971, this episode introduced audiences to one of the smartest and most beloved TV detectives of all time—Lieutenant Columbo.

Unlike typical whodunits, Columbo was a “howcatchem”—the audience already knew who the killer was, and the fun was in watching Columbo outsmart them with his unassuming charm.

Directed by a young Steven Spielberg, this episode set the tone for the entire series, proving that a detective show could be just as much about character as it was about solving crimes.

11. The Waltons – “The Thanksgiving Story” (1973)

Airing on November 15, 1973, this heartwarming two-part episode perfectly captured the essence of The Waltons. Set during the Great Depression, the story follows John-Boy’s struggle to earn a scholarship while his family prepares for Thanksgiving.

The episode’s themes of resilience, gratitude, and family unity deeply resonated with viewers. The emotional highs and lows, combined with the show’s signature wholesome storytelling, made this one of its most memorable episodes.

Decades later, this Thanksgiving classic remains a heartfelt reminder of the importance of love, perseverance, and togetherness.

12. Charlie’s Angels – “Angels in Chains” (1976)

Airing on November 3, 1976, this action-packed and suspenseful episode of Charlie’s Angels became one of the most iconic moments in the show’s history.

The Angels go undercover in a corrupt women’s prison, facing harsh conditions and a daring escape. The intense action, gripping plot, and strong female leads made this episode stand out, proving that Charlie’s Angels was more than just a stylish detective show—it was about empowered women taking control.

This thrilling episode helped solidify Charlie’s Angels as a pop culture phenomenon, influencing action TV for years to come.

13. Sanford and Son – “The Big Party” (1973)

Airing on October 19, 1973, this episode showcased the brilliant comedic timing of Sanford and Son star Redd Foxx.

Fred Sanford decides to throw a lavish party to impress his friends, but in classic Fred fashion, things quickly spiral into chaotic and hilarious situations. The episode perfectly captures Fred’s over-the-top personality and the show’s signature humor, making it one of the most beloved in the series.

Even decades later, Sanford and Son remains a sitcom classic, and this episode is a prime example of why audiences fell in love with the show’s sharp wit and unforgettable characters.