Ultra HD, or 4K as it is also known, is the latest development in television technology, offering four times greater picture clarity than HD - and eight times more than your standard TV picture.
The huge jump in picture resolution means that when you're looking at an Ultra HD programme up close, you'll be able to see incredible amounts of detail, from fine lines on leaves in nature programs to individual faces in the crowd at sporting events.
If you have an Ultra HD-ready TV and the BT Ultra HD box you can watch Champions League, Premier League and Gallagher Premiership Rugby in 4K Ultra HD. You can also access Ultra HD shows on Netflix.
1. How to find 4K Ultra HD shows on BT Sport
BT Sport in 4K Ultra HD brings much deeper, richer colours to your screen and, by delivering the action at 50 frames per second, gives viewers much sharper pictures and less motion blur. This is espcially noticeable when you watch fast-moving sports like football or motor racing, where camera movements will look much smoother.
Simply go to your BT Sport TV Guide and look for the programmes highlighted in orange (see picture above). These are the ones that are available in Ultra HD.
2. BT Sport 4K and Ultra HD highlights
Take a look at some of the sporting action you can experience in 4K Ultra HD in October:
Friday 12, 7pm: Champions Cup Rugby – Leinster v Wasps
Saturday 13, 3pm:Champions Cup Rugby – Exeter Chiefs v Munster
Saturday 13, 5.15pm: Champions Cup Rugby – Ulster v Leicester Tigers
Sunday 14, 12.30: Champions Cup Rugby – Gloucester v Castres Olympique
Sunday 14, 3pm: Champions Cup Rugby – Glasgow Warriors v Saracens
Friday 19, 7pm: Champions Cup Rugby – Leicester Tigers v Scarlets
Saturday 20, 5pm: Live Premier League – Huddersfield Town v Liverpool
Sunday 21, 12.30pm: Champions Cup Rugby – Newcastle Falcons v Montpellier
Saturday 27, 5pm: Live Premier League – Leicester City v West Ham Utd
Sunday 28, 11.45am: Live Scottish Premiership – Hibernian v Rangers
Wednesday 31, 7pm: Live Scottish Premiership – Hearts v Hibernian
1. How do I watch Netflix in 4K?
If you have a Netflix subscription, you can receive the streaming service in 4K Ultra HD. To receive Netflix in Ultra HD, you'll need an a 4K TV or a monitor, plus a steady internet connection speed of 25 megabits per second or higher. Streaming quality needs to be set to 'auto' or 'high.
2. How do I find 4K on Netflix?
Simply search Netflix for the terms "4K" or "UltraHD" to find titles available in Ultra HD.
What you can watch in 4K on Netflix
(All seasons in 4K unless stated)
13 Reasons Why
A Series of Unfortunate Events (Season 1 only)
Better Call Saul
Black Mirror (season 4 only)
Club de Cuervos presenta: La balada de Hugo Sánchez
Dynasty (also HDR)
Gilmore Girls: A Year in the Life
Hannah Gadsby: Nanette (UHD)
House of Cards
Marvel's Luke Cage
Orange is the New Black
Santa Clarita Diet
The End of the F***ing World
Grace and Frankie
Jack Whitehall: Travels with My Father
La casa de las flores
Greg Davies: You Magnificent Beast (UHD)
Ricky Gervais: Humanity
Planet Earth II
Set It Up
The Kissing Booth