Stephen Colbert Stephen Tyrone ColbertColbert implores Pelosi to update 'weaponry' in SCOTUS fight: 'Trump has a literal heat ray' The Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy Juan Williams: Democrats need to bury their divisions MORE led CBS to its first season win in the late-night talk show race in 25 years in a key demographic advertisers covet most.

According to Nielsen Media Research, the former Comedy Central star topped NBC's Jimmy Fallon and ABC's Jimmy Kimmel James (Jimmy) Christian KimmelFauci, Black Lives Matter founders included on Time's 100 Most Influential People list Kimmel-hosted Emmy Awards attract all-time low 6.1M viewers: 'Well, we set a record' Bubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team MORE in the key 18- to 49-year-old demographic, with Colbert registering 679,000 viewers per night. He edged Fallon's 659,000 viewers in the category, while Kimmel averaged 486,000.

The victory in the demographic is the first for CBS in the 11:30 p.m. ET slot since 1994.

ADVERTISEMENT

"The Late Show with Stephen Colbert," which originally struggled from a ratings perspective after launching in 2015, also easily beat Kimmel and Fallon in total viewers for the third straight year.

Colbert finished the season, which officially ended Wednesday, with 3.82 million average nightly viewers, dwarfing Fallon’s 2.44 million and Kimmel’s 2.04 million.

All three late-night show lost viewers year-over-year, however. Colbert's audience dropped by 2 percent, while Fallon was off by 9 percent and Kimmel was down 10 percent.

Fallon originally dominated the race between Colbert and Kimmel when the three were first matched up four years ago. But once Donald Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE entered the presidential race, late-night shows became more focused on political news, and Colbert, a frequent critic of Trump who formerly hosted the political satire show "The Colbert Report" on Comedy Central, eventually jumped ahead of Fallon in total viewers.