10 ways David Letterman changed late-night TV

Johnny Carson was a stand-up kingmaker

While it was on the air, “The Tonight Show with Johnny Carson” was a prime outlet for stand-up comedy. Getting invited over to Carson’s couch meant he’d enjoyed the set—and that the comic was destined for great success.

How musical guests disappeared from late night TV

The late-night landscape has changed dramatically in the past five years, with the most visible difference being a severe lack of music. This writer set out to learn why that is—and what it means for audiences and artists alike.

Jim Downey is one of SNL's most legendary writers

Jim Downey arrived at “Saturday Night Live” in 1976, the same week as Bill Murray. He also wrote a legendary monologue from “Billy Madison,” and created David Letterman’s “Top Ten."

In 1984, Dylan began experimenting with punk

When Bob Dylan was asked to appear on David Letterman’s relatively new late-night show, he decided to call an audible. He’d been intrigued by LA’s exploding post-punk scene and had spent time jamming with one of its bands, the Plugz, whom he decided to bring to Letterman as his backing band. The appearance sounds unlike anything else in his catalog and is one of his more fascinating creative reinventions in a career loaded with them.

SNL's history in 60 seconds

Saturday Night Live has been a fixture of American comedy since 1975. Created by Lorne Michaels and Dick Ebersol, the show was designed as an alternative to late-night reruns, blending live sketch comedy, political satire, and celebrity impressions.

‘The Larry Sanders Show’ redefined the American sitcom by cutting the laughs

"The Larry Sanders Show" avoided both live studio audiences and canned laughs, implying viewers didn’t need to be told when to react. That was not common at the time—TV’s most popular live-action sitcoms, “Seinfeld” and “Cheers,” both relied on the more traditional approach—but the choice had a profound effect.

Some novel ideas to improve presidential debates

The first televised presidential debates of 1960 were seemingly so consequential, candidates opted not to participate in one for 16 years. In the last 60 years, debate format has changed frequently as the political parties and news outlets vie for rules to either protect candidates or increase TV ratings. In this brief video, one expert suggests five interesting innovations to the debate format to make them more informative for the average US voter.

Mark Twain was an early influence on stand-up

The writer’s live lectures looked a lot like modern stand-up comedy specials. Twain’s world tour in the 1890s featured 90-minute performances in which he stood alone on the stage, delivering long, comedic monologues with his hand perched on his chin.

Ranking the 50 worst decisions in TV history

Most shows bomb or never even get recorded; some that do are lost to history, having failed to impress the audience or critics. This list combs through six decades of TV production history and identifies some of the worst decisions made by management in network history. Dive into the 50 worst executive decisions here, from giving the Geico cavemen a show to Geraldo Rivera's live walkthrough of Al Capone's vault.

Watch 5 decades of Times Square ball drops

Dick Clark started hosting his “New Year’s Rockin’ Eve” show in 1972, which has become an annual television staple. This compilation includes five decades' worth of ball drops, allowing you to watch how the tradition subtly evolved.

David Simon on writing for TV

Few people have done more to define HBO—and American television—than David Simon, creator and writer for “The Wire,” “Treme,” “Show Me a Hero,” and other shows. In this interview, Simon explains how he approaches a script and what he believes TV writers should aim to do beyond entertainment.

Watch Grace Hopper's appearance on the 'Late Show with David Letterman'

During this comedic interview, Hopper describes her 43.5 years in the Navy, an anecdote about when President Reagan promoted her, and provides a visual aid to explain the transmission of information at the nanosecond scale via electricity.

How YouTube's biggest creator changed the platform forever

Jimmy Donaldson, aka MrBeast, has accrued 241 million subscribers on YouTube by obsessing over content and spending sometimes millions to produce a single video. He is known for recording himself doing extreme stunts, like staying underwater for 24 hours, and gifting people with large amounts of money. Creators have imitated his style ever since. Dive into how MrBeast transformed YouTube here.

Conan's 2000 commencement speech offers comfort and humor to young Harvard graduates

In the spring of 2000, famous late-night talk show host and comedian Conan O'Brien gave a hilarious, thoughtful speech to the graduating class at Harvard, where he graduated from in 1985. He warns that once adult life begins, any stupid mistakes made by a Harvard grad will be severely mocked. He also recounts his post-grad failures and how important they were in his success. The speech has been noted ever since as a classic example of both wisdom and foolishness.

‘Horror hosts’ helped build the genre’s cult following

Horror is now considered high art, but much of its cult popularity is due to the B-movies that defined the genre. Starting in the 1950s, many of these low-grade films were licensed on the cheap by television networks to fill airtime, introduced by “horror hosts”—MCs with campy, over-the-top personas.

Alex Trebek only missed one day in 37 years of hosting 'Jeopardy!'

Art Fleming was the show’s original host, but Trebek took over when the show went to syndication in 1984. The only taping he missed while host was on April 1, 1997, when he and Pat Sajak, host of “Wheel of Fortune,” switched gigs for April Fools’ Day.

A conversation with David Attenborough about his work, from his narrative style to technology

Although he began working in television before owning a television set, gaining experience as a producer in the editing room helped Attenborough develop an insight into creating engaging content with less dialogue. Among the technologies pioneered during his career were stabilized cameras for aerial shots, infrared and microphotography, and waterproof electronics for underwater cameras.

Television transformed college football into a national spectacle

The rise of televised games in the mid-20th century expanded college football’s reach far beyond campus stadiums—turning regional rivalries into national events, boosting revenue, and cementing the sport as a Saturday tradition across the country.

‘Guiding Light’ was the longest-running scripted drama in broadcast history

The show ran for 72 years, starting as a radio program in 1937, and eventually transitioning to television in 1952. Along the way, it launched several Hollywood stars, like Kevin Bacon, James Earl Jones, and Christopher Walken. CBS canceled the show in 2009.

The iPhone's impact in 10 charts

It's been almost 20 years since Steve Jobs first unveiled the iPhone, the device that would come to define Apple for years and change not just the smartphone industry but the world at large. 10 examples of the iPhone's impact include its all-screen touch interface and the way it led to the rise of app culture.

The Benjamin Franklin letter that anticipated daylight saving time

Benjamin Franklin did not invent daylight saving time. But while living in Paris, he did pen a satirical letter to Parisians suggesting they could save money on lamp oil by changing their sleep schedules. Read it in full here.

Explore 14 iconic self-driving cars from television and film

From the heroic KITT from "Knight Rider" and Batmobile from "Batman" to the demonically possessed Christine from Stephen King’s "Christine," many of the vehicles on this list are examples of how classic cars have been personified in media.

How Lyndon Johnson created public radio

The Public Broadcasting Act of 1967, part of the president's Great Society plan, established the Corporation for Public Broadcasting, which later led to the incorporation of National Public Radio. Originally, the bill was intended solely to establish public television; before Johnson signed the act, slips of paper reading "and radio" were literally Scotch-taped next to each mention of "television."

Satirists sometimes use ironic personas

Satirists often embody a character to mock the kind of person who would believe what they argue are ridiculous ideas. One famous example was Stephen Colbert on “The Colbert Report,” who satirized right-wing pundits like Bill O’Reilly through a bombastic persona. When O’Reilly asked whether that meant he was owed money, Colbert responded with more satire: “There’s a difference between imitation and emulation … If you imitate someone, you owe them a royalty check. If you emulate them, you don’t.”

See the most iconic photos from four decades of LIFE magazine

'I Love to Eat' was the first nationally televised cooking show

Beard’s show, cohosted with Julia Child, debuted in 1946. It was invaluable in setting the stage for today’s massive trove of televised and online cooking content.

20,000 letters to the advice columnist 'Dear Abby' provide insight into prevailing sex, religion, and LGBTQ fears, anxieties, and concerns from the 1950s onward.

Exploring the Larry Bird punch that almost changed March Madness

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

A researcher recently discovered an interview from 1967 between groundbreaking journalist Joan Didion and the Grateful Dead, years before the band became an institution.

Comedy legend Catherine O'Hara, star of 'Schitt's Creek' and 'Home Alone,' quit 'Saturday Night Live' after just one week to return to her old job.

Jimmy Carter signed a 1978 bill that legalized home brewing, a move credited with kick-starting the craft beer industry.

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

Hear 50 years of iconic hip-hop samples, the genre's foundational looped tracks

Netflix profits when you're not watching, and its movies are designed that way—read a detail-rich critical essay exposing lesser-known Netflix takes

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

Children are now three times more likely to say they want to be a YouTuber when they grow up than an astronaut, with some even attending 'YouTube camps' that teach kids how to create content for the platform.

Search a massive database of over 4 decades of clues from the TV quiz show 'Jeopardy!'

Apollo astronauts left items in the moon's 'toss zone,' including golf balls, family photos, and bags of human waste, to make room for lunar rocks.

View the ten deadliest tornadoes in US history.

Domino's Pizza's 30-minute delivery guarantee was responsible for the chain's 1980s surge, but it was discontinued after the company was found liable for delivery driver accidents.

The first horror movie is believed to be George Méliès' 1986 short 'The Haunted Castle,' which pioneered the use of special effects

How the most famous Ebola book, The Hot Zone, which sold 3.5 million copies and was translated into 30 languages, got aspects of the disease so wrong.

Sony set the standard for cylinder-shaped batteries when it repurposed manufacturing equipment used to make rolls of magnetic recording tape.

SpongeBob exemplifies Aristotle's philosophy for living well because he understands that happiness doesn't come from external factors like money, recognition, or power.

The Nasdaq's 'Magnificent 7' companies are responsible for roughly 40% of the Nasdaq 100 index's gains, while the remaining 93 companies account for the other 60%.

Venture capital is a form of funding provided to early-stage companies with high growth potential, typically in exchange for an equity (or ownership) stake

Watch how algorithms can be designed to train themselves and self-improve without human input, to the point where the optimized code is too complex for programmers to understand.