FromThe SopranostoBreaking Badto the very first police procedural,Dragnet, some crime TV shows are so great that they ended up revolutionizing the genre. Crime shows have always been a staple of the television landscape. For as long as dramas have been produced for the small screen, audiences have been watching detectives solve mysteries. Whether those detectives are solving murders we already saw in the opening scene or cracking down on the drug trade in Baltimore with a wiretap operation, audiences have always loved experiencing the high-stakes criminal underworld from the safety of their living rooms.

The 1930s BBC seriesTelecrimewas the first multi-episode TV drama to adopt the whodunit format. The 1950s NBC seriesDragnetpopularized the police procedural as we know it today.The Wiresubverted every trope of the police proceduraland presented a much more realistic, less formulaic depiction of law enforcement.The Shieldbrought corrupt cops and police brutality to a standard procedural, andThe Sopranosditched law enforcement altogether and told its story from the perspective of the mafia.Breaking Badintroduced the concept of changeto a genre that had famously followed a recyclable formula for decades.

The making of Telecrime 1938

10Telecrime

Telecrimewas one of the first multi-episode TV dramas ever made, and one of the first TV dramas written specifically for television instead of being adapted from a stage play or a radio production. As such, it was also one of the earliest crime shows, and showed how the genre could work in this exciting new medium. It initially aired five episodes under its original title between 1938 and 1939, and after World War II, in 1946, it returned to the airwaves with a new name,Telecrimes.

Each episode ofTelecrimewould depict a crime and, through the ensuing whodunit plot, give audiences all the clues they needed to solve it. Unfortunately, all 17 episodes ofTelecrimehave been lost. Since they were aired live and relied on audience participation, it would’ve been difficult for the BBC to preserve the series with the technology available at the time.

Joe Friday (Jack Webb) looking at someone in Dragnet (1954)

9Dragnet

Adapted from the radio series of the same name,Dragnetbrought the police procedural to television. Every hard-edged detective to hit the small screen has been following in the footsteps of Jack Webb’s Sergeant Joe Friday.Dragnetestablished all the tropes of a classic procedural: the case-of-the-week storytelling, the noir-ish style (complete with snappy voiceover narration), and the straight-arrow detective diligently tackling each investigation. Subsequent procedurals would deviate from this established formula, but they’re all standing on the shoulders ofDragnet.

8The Shield

Decades afterDragnethad laid out the formula for a police procedural, Shawn Ryan put a radical new twist on it inThe Shield. UntilThe Shieldcame along, procedurals presented the cops as the good guys and the crooks as the bad guys. But inThe Shield, Vic Mackey and his fellow L.A.P.D. detectives are the bad guys. They’re all corrupt and don’t think twice about brutalizing suspects. Those older procedurals presented a romantic, black-and-white view of law enforcement, butThe Shieldderomanticized that depiction of the police, drawing on the real-life Rampart scandal for inspiration.

7Hill Street Blues

AfterDragnetpioneered the police procedural, it caught on pretty quickly. Shows likeKojakandCagney & Laceybrought more personality to the detectives that gave audiences another reason to tune in. They weren’t just intrigued by the fun of solving a mystery; they were endeared to the characters.Hill Street Blueswas another procedural that deftly balanced compelling crime stories with endearing characters, but it put its own twist on the genre. It was the first show that authentically captured the grimness of the job and the psychological toll of police work.

6CSI: Crime Scene Investigation

WhenCSI: Crime Scene Investigationpremiered, it was a throwback to classic procedurals likeDragnetandHill Street Blues. But it put a modern spin on that familiar formula by incorporating contemporary technology into its crime-solving. The show’s ensemble of Vegas investigators used the latest cutting-edge forensic tech to crack their cases.CSIwas such a huge hit that it launched a blockbuster TV franchise comprised of four spinoffs and a documentary. It even caused a phenomenondubbed the “CSI effect,”since the series gave real-life jurors unrealistic expectations of overwhelming forensic evidence in criminal cases.

5True Detective

The masterfully craftedfirst season ofTrue Detectivewas one of the earliest TV shows to blur the line between television and cinema. Its subtly powerful performances and gonzo Southern Gothic visuals were broadcast on the small screen, but they would’ve been right at home on the big screen. The season’s dual timelines, chronicling a devilishly complex murder mystery across 17 years, revolutionized TV storytelling with a novelistic approach, and with Matthew McConaughey and Woody Harrelson in the lead roles, it was one of the first shows to bring movie stars to the small screen.

4Columbo

Columbowas one of the cop shows likeKojakandCagney & Laceythat injected an eccentric personality into their detectives. But it also flipped the whole genre on its head.Columbo’s mysteries-of-the-week aren’t whodunits; they’re howcatchems. Every episode shows the crime in its opening scene, so the audience already knows who the culprit is. What keeps them hooked is figuring out how Peter Falk’s titular gumshoe will figure it out.Columbopopularized the howcatchem subgenre, and it continues to influence crime shows to this day — most notably withNatasha Lyonne’s seriesPoker Face.

3The Wire

David Simon translated everything he’d learned while working as a crime reporter in Baltimore into the most authentic cop show on television.The Wireupends all the familiar trappings of a formulaic police procedural to present flawed cops, sympathetic criminals, and cases that take years to build.The Wirehas an almost documentary-like sense of realism that had never been seen in TV crime dramas before. It’s a journalistic study of the American city, exposing every institutional problem that keeps the system mired in chaos and corruption. It doesn’t sensationalize violence;The Wiredepicts violence in a hauntingly realistic way.

2The Sopranos

David Chase kicked off the so-called Golden Age of Television with his creation ofThe Sopranos. Where previous crime shows had made cops the protagonists and criminals the antagonists,The Sopranosflipped the script, made a mob boss its protagonist, and showed the government’s endless war on organized crime from his point-of-view.The Sopranoshumanized the mafia by showing mobsters in their mundane day-to-day lives. Tony Soprano spends a lot of time killing and extorting people, but he also spends just as much time going to therapy, hanging out with his kids, and dipping cold cuts into jars of mayonnaise.

1Breaking Bad

Traditionally, TV shows avoided change. The premises were designed to reset each week, so they could keep the same characters in the same setting for hundreds of episodes. But Vince Gilligan realized that long-form storytelling would be a great vehicle to show a character gradually changing over time. So, he createdBreaking Bad, a show about a mild-mannered high school chemistry teacher who’s diagnosed with lung cancer and becomes a notorious meth kingpin to pay his medical bills. Gilligan famously set out to turn Mr. Chips into Scarface, and pioneered a whole new way of telling a story on television.

Vic Mackey (Michael Chiklis) with backup in The Shield

Ed Marinaro in Hill Street Blues

Eric Szmanda as Greg Sanders in CSI: Crime Scene Investigation

Rust hiding during the oner in True Detective episode 4

Columbo standing by a car

McNulty and Bunk in The Wire

Tony Soprano in the pool in The Sopranos

Walter White looking mad in the desert in Breaking Bad