BT has confirmed that its next-generation YouView TV service will be downloaded to customers' set-top boxes early next year.
According to the provider, the revamped service will offer an "image-rich" user experience and make it easier for people to navigate straight to the channels they want.
Subscribers have been promised a "faster and slicker" experience that enables them to "find their way around more intuitively".
The new-look design and usability will also feature in a new BT TV app, which launches next summer and has been designed to offer a "seamless TV experience in and out of the home on tablets, smartphones and online".
The upgrades will be rolled out for free across all BT TV packages, which BT says will give even more value to customers throughout the UK.
Delia Bushell, managing director of BT TV and BT Sport, said: "BT’s mission has always been to provide a high quality, premium TV service at prices that give unbeatable value to UK consumers.
"We will keep driving the pace of innovation in content, broadcasting and our customers’ experience."
BT has also confirmed that from early next year, it will begin showing boxing on Saturday nights, thanks to a new partnership with BoxNation.
At least 20 Saturday night fights, ranging from British to World title fights, will be shown on BT Sport channels.
Sports coverage will also be enhanced by the launch of Dolby Atmos sound, which will be available to BT Sport Ultra HD customers from January.
BT says it will be the first broadcaster in the UK to offer Dolby Atmos sound, which is to be combined with Ultra HD for select events to "deliver the most immersive experience possible".
This will be available as part of BT TV's Total Entertainment pack for no extra charge.
"Our expanding list of sports rights will now include BoxNation and access to boxing world title bouts, all included in the price of the BT Sport subscription," Ms Bushell said.
"We are taking the fight to our rivals in 2017 and we’ll be in great shape.”