Freesat has launched in the UK offering access to subscription-free, high-definition digital TV.

The joint venture between the BBC and ITV provides over 80 digital TV channels, radio stations and interactive services to 98 per cent of households in the UK.

Freesat will allow viewers to see major sporting events such as Wimbledon, the Beijing Olympics and Euro 2008 in high definition.

The service will help many of those affected by the digital switchover in the UK as it is received via a dish rather than an aerial, thereby increasing its signal footprint.

Freesat is broadcast from the Astra and Eurobird satellites and offers high speed digital text and enhanced interactivity, including a seven-day on-screen guide providing full details of upcoming shows.

"Freesat will give a great TV experience to all, regardless of where they live," said Emma Scott, managing director of Freesat.

"For a one-off payment with no hidden costs, viewers nationwide will have access to free digital TV which includes the brilliance of high definition TV."

The single one-off payment covers the digital box or HDTV with Freesat built in, the satellite dish and installation.

"The launch of Freesat is the final piece in the digital jigsaw and will ensure that all viewers in the UK have access to free-to-air digital and high-definition television," said Michael Grade, executive chairman of ITV.

Freesat receivers will initially be available in three formats: a standard definition box, an HD box and an HD integrated digital TV with Freesat built-in.

Box prices start from £49, with a high definition box available from £120 plus installation costs from around £80 which includes the satellite dish.

Initially the service will transmit around 80 channels, but Freesat has promised around 200 channels by the end of the year.