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The full episode, in writing.
On January 22, 2010, Conan O’Brien walked off the stage of The Tonight Show for the last time, just seven months after inheriting the most storied desk in American television. He was born in Brookline, Massachusetts in 1963, but this moment—broadcast from a studio in Burbank, watched by millions—would define a generation’s understanding of late-night television, rivalry, and what it meant to succeed a legend.
The conflict between Jay Leno and Jimmy Kimmel was rooted in the high-stakes world of late-night television. Jay Leno, born in 1950 in New Rochelle, New York, grew up in Andover, Massachusetts, and started his stand-up career after earning a degree from Emerson College in Boston. By 1992, Leno had become Johnny Carson’s regular guest host and was chosen by NBC to take over The Tonight Show, in a decision that shocked many—including David Letterman, who had long believed he was Carson’s chosen successor.
The 1992 succession struggle became the subject of Bill Carter’s 1994 book The Late Shift, which chronicled the machinations, betrayals, and backstage negotiations. Leno’s Tonight Show rose in the ratings, especially after a standout 1995 episode with Hugh Grant, drawing more viewers than Letterman for the first time. Leno’s popularity with mainstream audiences solidified his status, but the perception lingered that he had outmaneuvered Letterman for the coveted seat.
By 2004, NBC executives were determined to avoid another ugly transition. O’Brien, then firmly established at Late Night, faced lucrative offers from rival networks ABC and Fox. NBC, wanting to keep him, promised O’Brien he would inherit The Tonight Show in 2009, and signed corresponding contracts with both O’Brien and Leno. O’Brien stayed, and Leno agreed to step aside in five years.
The promised handover occurred in June 2009. Leno left The Tonight Show on May 29, and O’Brien became host on June 1. However, NBC also kept Leno in the fold, offering him The Jay Leno Show, a primetime program that debuted on September 14, 2009, airing weeknights at 10 p.m. ET. The experiment quickly soured. The Jay Leno Show’s ratings lagged, and NBC affiliates complained about poor lead-ins hurting their late local news broadcasts. Both Leno’s and O’Brien’s Tonight Show suffered in viewership.
On January 7, 2010, NBC announced a dramatic plan: Leno would leave primetime and move back to 11:35 p.m. with a 30-minute show, pushing The Tonight Show with Conan O’Brien to 12:05 a.m.—the first time in its history the show would start after midnight. O’Brien, who had been told years earlier that he would succeed to the true Tonight Show, saw this as a breach. On January 12, he released a statement refusing to host at 12:05 a.m., arguing, “The Tonight Show at 12:05 simply isn’t The Tonight Show.”
NBC’s leadership—specifically Jeff Gaspin, chairman of NBC Universal Television, and Jeff Zucker, then NBC’s chief executive—found themselves in a high-stakes negotiation. According to Bill Carter’s book The War for Late Night, Leno’s contract allowed him to sue NBC if his program was canceled. This gave him significant leverage. O’Brien’s contract, however, stipulated that NBC could move his show to 12:05 a.m. without penalty, a clause originally meant for rare sports preemptions, not a permanent schedule change.
The dispute escalated quickly. O’Brien’s manager, Gavin Polone, and agent Rick Rosen argued heatedly with NBC leadership, with Zucker reportedly threatening to “ice him for two years” if he didn’t cooperate. The outpouring of audience support for O’Brien, including the so-called “Team Coco” movement, saw fans rallying online and in-person, with O’Brien likening it to starring in his own “It’s a Wonderful Life.”
Financial calculations played a major role in the network’s decision-making. NBC ultimately paid O’Brien $33 million to leave The Tonight Show, with an additional $12 million going to his nearly 200-person staff. Carter noted that had O’Brien left NBC for another network in 2004, the company would have lost $235 million. By contrast, the payout to O’Brien in 2010 was a fraction of that figure, and NBC retained Leno, who quickly returned to The Tonight Show on March 1, 2010.
Leno’s reputation took a hit. Critics pointed to a 2004 clip where he had publicly insisted he would hand off The Tonight Show to O’Brien without incident. In the end, although Leno won back his old job, ratings for The Tonight Show fell below O’Brien’s numbers, according to the Las Vegas Review-Journal. During the second quarter of 2010, The Tonight Show with Jay Leno averaged 4 million viewers, a decline from 5 million during the same period in 2009, but stayed ahead of ABC’s Nightline and the Late Show with David Letterman.
The 2010 conflict became a media spectacle, drawing in other late-night hosts. Jimmy Kimmel, whose own show had premiered on ABC in 2003, appeared as a guest on The Jay Leno Show’s “10 at 10” segment in January 2010, where he openly mocked Leno for reclaiming the time slot. Kimmel’s comments referenced the generational divide and the rivalry’s impact on all hosts vying for late-night supremacy.
O’Brien, after his departure from NBC, launched a new late-night show called Conan on TBS. His audience, fiercely loyal, followed him to cable. The “Team Coco” energy led to his “Legally Prohibited from Being Funny on Television Tour” and a documentary, Conan O’Brien Can’t Stop.
Formative influences for Jay Leno included his early years performing stand-up comedy in Boston, where he honed his mainstream comedic style. Leno’s work ethic and ability to appeal to broad audiences made him a regular guest host for Johnny Carson before being selected as Carson’s successor in 1992. Jimmy Kimmel, born in 1967 in Brooklyn, New York, developed his comedic sensibility through radio and local television before launching Jimmy Kimmel Live! in 2003, establishing himself as a sharp and irreverent commentator on pop culture.
Setbacks shaped both Leno and Kimmel’s careers. Leno faced criticism for his role in the 1992 Tonight Show succession and again during the 2010 conflict, as many viewers and critics saw his return to The Tonight Show as undermining O’Brien. Kimmel, meanwhile, struggled with ratings in the early years of his ABC show, often lagging behind established competitors like Leno and Letterman.
Peak achievements for Leno included his dominant run as host of The Tonight Show from 1992 to 2009, consistently leading late-night ratings, especially after high-profile episodes such as the 1995 Hugh Grant interview. Kimmel’s show gained traction over the years, eventually earning critical acclaim and increased viewership, especially for his bold monologues and viral segments that often addressed topical events and controversies.
The legacy of the feud between Jay Leno and Jimmy Kimmel is tied to the 2010 Tonight Show conflict, which exposed the inner workings of network television, the power of contracts, and the volatility of audience loyalty. Kimmel’s public mockery of Leno during the January 2010 “10 at 10” segment became a defining moment, symbolizing the generational shift and the willingness of younger hosts to openly challenge the old guard. The feud also highlighted the risks networks take in managing transitions between high-profile hosts and the enduring cultural significance of late-night television.
The final episode of The Tonight Show with Conan O'Brien was broadcast on January 22, 2010, ending a seven-month run and marking the shortest tenure of any Tonight Show host. The payout to O’Brien and his staff was $45 million. Carter noted that had O’Brien walked in 2004, NBC would have lost $235 million.