TalkTalk TV customers can now access Sky Sports and Sky Movies catch-up content via their YouView set-top box.
A new wholesale agreement between Sky and TalkTalk will broaden customers' viewing options.
Customers with a Sky Sports or Sky Movies TV Boost can watch previously-aired content by scrolling back through their electronic programme guide.
This means they can catch up on programmes and films they have missed, and watch them at their convenience.
TalkTalk TV subscribers - those who are signed up to the Essentials TV or Plus TV broadband packages - can access Sky TV boosts on a non-contract basis.
The Sky Sports TV Boost is available from £30 per month, while the Sky Movies TV Boost costs £15 per month.
Under the terms of Sky and TalkTalk's new agreement, TalkTalk TV viewers will also be able to watch pay-per-view events on Sky Sports Box Office.
Tristia Harrison, Managing Director Consumer at TalkTalk, claimed her company's television service is going "from strength to strength".
"We are delighted to have expanded our partnership with Sky even further," she noted.
"Our customers love the ability to dip in and out of the TV they love and this new agreement means we can continue to offer the flexible access to great content we are fast becoming famous for."
Mai Fyfield, Group Director for Strategy and Business Development at Sky, said the broadcaster is "delighted" to extend its wholesale partnership with TalkTalk.
She said TalkTalk customers with a YouView set-top box will be able to access "even more great content from Sky".
"As we continue to increase our investment in high-quality TV, we want to continue to broaden the distribution of our content and grow our content-related revenues," Ms Fyfield stated.
"We look forward to TalkTalk customers being able to continue to enjoy the best of Sky, including the brand new Sky Sports 5 channel launching next month."