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December TV Premieres: Amadeus Series Adaptation, Stranger Things Finale, and Simu Liu’s The Copenhagen Test

Updated :  Saturday, December 6, 2025 2:25 PM
December premieres include Amadeus series, Stranger Things finale, and Simu Liu’s The Copenhagen Test.

Key Points

  • Amadeus series premieres December 21 on Sky Atlantic and Now in the UK.
  • Will Sharpe stars as Mozart, with Paul Bettany as Salieri and Rory Kinnear as Emperor Joseph II.
  • Stranger Things Season 5 begins November 26, with its finale set for December 31 alongside a theatrical release.
  • Simu Liu leads Peacock’s The Copenhagen Test, debuting December 27, produced by James Wan.
  • December offers a mix of historical drama, sci-fi thrillers, and one of TV’s most anticipated finales.

Amadeus Returns in Series Form

The acclaimed story of rivalry and genius between Wolfgang Amadeus Mozart and Antonio Salieri is being reimagined for television. The new Amadeus series premieres December 21 on Sky Atlantic and Now in the UK, adapting Peter Shaffer’s 1979 play into a lavish exploration of 18th-century Vienna.

Will Sharpe takes on the role of Mozart, offering a more layered portrayal than Tom Hulce’s eccentric performance in the 1984 Oscar-winning film. Sharpe’s Mozart is high-spirited yet self-aware, embodying both brilliance and selfishness. Paul Bettany stars as Salieri, while Rory Kinnear plays Emperor Joseph II. The series promises opulent visuals and the timeless music that defined the era.

Stranger Things Approaches Its End

Netflix’s cultural phenomenon Stranger Things is preparing for its fifth and final season, premiering November 26. Three additional episodes will drop on Christmas Day, leading to the grand finale on December 31, which will also screen in theaters across the U.S. and Canada.

Creators Matt and Ross Duffer confirmed that the final season will resolve all lingering questions, ensuring a definitive conclusion for fans who have followed the Hawkins saga since 2016.

Simu Liu Stars in The Copenhagen Test

On December 27, Peacock will debut The Copenhagen Test, a sci-fi spy thriller starring Simu Liu (Shang-Chi and the Legend of the Ten Rings). Liu plays Alexander Hale, an intelligence analyst whose brain has been hacked, forcing him to uncover the perpetrators while proving his loyalty.

The series co-stars Melissa Barrera and Brian D’Arcy James, with production led by horror visionary James Wan, known for Saw and Insidious.

What Happens Next

With Amadeus bringing historical drama to the screen, Stranger Things closing out one of Netflix’s biggest franchises, and The Copenhagen Test offering a fresh sci-fi thriller, December is shaping up as one of the most exciting months for television. Viewers can expect a blend of prestige storytelling, blockbuster finales, and genre innovation.

Kelly Powers

Kelly Powers is an entertainment writer who brings the world of movies, music, and celebrity culture to life for audiences across the U.S. and beyond. With a flair for storytelling and a deep love for pop culture, she covers Hollywood trends, streaming sensations, and global entertainment news with insight and style. Kelly’s writing keeps readers informed, entertained, and always in tune with what’s hot in the entertainment world.