New British TV Series Coming in 2026 on BBC, Netflix, ITV, Channel 4, Prime Video, Sky

TV fans, get ready for an exciting year ahead with plenty of new British TV series heading our way in 2026. With second seasons of The Night Manager and Red Eye already underway, we can look forward to even more entertainment.

Some big names like Russell T Davies, Steven Moffat, and Chris Chibnall are all gearing up for new shows this year. Plus, a Kit Harington-led adaptation of A Tale of Two Cities is also on the horizon.

If you loved Baby Reindeer and Derry Girls, get excited because Richard Gadd and Lisa McGee have new series coming our way. And let’s not forget that fan-favorite shows like Line of Duty and Unforgotten are making a return with their seventh seasons.

Here’s a sneak peek at some of the highlights for 2026:

Agatha Christie’s Seven Dials – Premiering on January 15 on Netflix, this mystery features a star-studded cast and a puzzling 1929 plot.
How to Get to Heaven From Belfast – Set to be released in February on Netflix, this show follows a group of childhood friends who receive unexpected news.
Young Sherlock – Catch this series on Prime Video starting March 4 as it delves into the early years of the famous detective.
Betrayal – A brand new spy thriller coming soon to ITV, promising to keep you on the edge of your seat.
Lord of the Flies – For the first time ever, BBC is bringing William Golding’s classic novel to the small screen under the direction of Jack Thorne.
The Lady – Fans of The Crown will love this royal drama series based on the true story of Sarah Ferguson’s dresser.
Get ready to mark your calendars for these upcoming releases and more in 2026. Whether you’re into mysteries, dramas, or thrillers, there’s something for everyone to enjoy on UK TV this year.