The 78th Primetime Emmy Awards unfolded with a mix of predictable wins and surprising upsets, ultimately seeing the newcomer series "Widow's Bay" emerge as the night's biggest winner. Hosted by Mariska Hargitay from Los Angeles' Peacock Theater, the ceremony was marked by an energetic, at times theatrical, hosting performance and several record-setting achievements.

"Widow's Bay," a horror-comedy that gained significant traction over the summer, dominated the comedy categories, surpassing established contenders like "Hacks" and "Only Murders in the Building." The series earned supporting actor awards for Stephen Root and Kate O'Flynn. Its star, Matthew Rhys, achieved a rare feat by winning two Emmy Awards in a single night: one for Lead Actor in a Comedy for "Widow's Bay" and another for Lead Actor in a Limited Series for "The Beast in Me." Rhys's dual win places him in elite company, alongside James Earl Jones as the only other male actor to win two Emmys for different roles in the same year.

"The Pitt" also secured notable wins, including Outstanding Drama Series and Lead Actor for Noah Wyle. However, the series did not sweep the supporting acting categories as might have been expected. Tom Pelphrey won for his role in "Task," while Allison Janney took home an award for "The Diplomat," with both performances seemingly overshadowing nominees from "The Pitt."

Pelphrey delivered an emotional acceptance speech, dedicating his award to his pregnant fiancée, Kaley Cuoco. Janney expressed surprise at her win.

Jean Smart made history by winning her fifth consecutive Emmy for Lead Actress in a Comedy Series for her role in HBO's "Hacks," marking a win for every season of the show. Her co-star, Meg Stalter, garnered attention for her unconventional Emmy statue costume.

In another historic moment, 79-year-old Sally Field became the oldest recipient to win in the Lead Actress in a Limited Series or Movie category for her performance in "Remarkably Bright Creatures."

The ceremony also honored significant humanitarian contributions. Michael J. Fox accepted the Bob Hope Humanitarian Award for his advocacy and fundraising efforts for Parkinson's disease research.

Host Mariska Hargitay's performance included taped segments featuring appearances by New York Knicks star Jalen Brunson and pop superstar Taylor Swift. Swift, who named her cat after Hargitay's "Law & Order: SVU" character, Olivia Benson, appeared in a "SVU" skit. Swift was not in attendance at the Emmys, reportedly supporting her husband Travis Kelce at a Chiefs game.

Hargitay's hosting duties also included a musical number that referenced various television shows from the past year. While her enthusiasm was evident, some of the comedic bits were met with mixed reactions.

The "In Memoriam" segment paid tribute to a number of significant figures lost in the past year. "Schitt's Creek" stars Annie Murphy, Dan Levy, and Macaulay Culkin honored the late Catherine O'Hara. Sally Field paid tribute to her "Steel Magnolias" co-star Dolly Parton, and Jamie Lee Curtis tearfully remembered Rob Reiner, an alum of "The Bear," highlighting his recent historic Emmy win with a 48-year gap between wins.

Reunions added to the night's nostalgia, with "Buffy the Vampire Slayer" stars Sarah Michelle Gellar and David Boreanaz onstage together, and "Charlie's Angels" stars Kate Jackson, Cheryl Ladd, and Jaclyn Smith reuniting to mark the show's 50th anniversary. The ceremony, while uneven at times, provided a memorable evening of television's highest honors.