Developed by the BBC, ITV TalkTalk and BT, YouView uses broadband to deliver on demand and catch-up content in addition to free broadcast channels.
The service was launched on Wednesday by Chairman Lord Sugar and retail boxes are expected in stores by the end f the month.
Sky will make programming available under its new NOW TV service which will offer a “commitment-free way” of accessing the pay-TV giant’s content.
Later in the year both BT and TalkTalk will offer their users bundled and exclusive content as part of a combined TV, broadband and phone call package.
BT’s website says customers will also receive “a heavily discounted YouView box” as part of a “great value” subscription.
TalkTalk has said it will unveil fuller details at an investor Strategy Day later this month.
“YouView is innovative, easy-to-use and perfect for our customers,” said Dido Harding, CEO, TalkTalk. “Youview from TalkTalk will give customers an extraordinary TV experience that is accessible and affordable for all.”