Eurosport could be returning to UK screens after a three year gap if negotiations currently being held with Sky are succesful.
The sports network is expected to add its HD channel to the Sky HD platform within the next few days.
It is understood to be currently testing at 28 degrees East alongside Eurosport News.
A Eurosport spokesman said: “We’ve been negotiating with Sky and are very keen to launch our service in the UK.”
The UK’s BBC has begun testing the transmission of high def services over Freeview in a move that could see the introduction of full HD terrestrial by the end of 2009.
The broadcaster has started transmissions from a Guildford-based transmitter using the second-generation DVB-T specification DVB-T2.
Justin Mitchell, leader of the DVB-T2 modem development team at the BBC, said the trial could enable the introduction of HD onto Freeview by December next year.
DVB-T2 is said to offer 30 per cent more data carrying capacity as DVB-T under the same conditions.
Across the Channel, the HD version of public channel France 2 has been launched on several platforms, including CanalSat DTH and Numéricable.
As has been the case with other broadcasters across Europe, including VRT in Belgium and Nederland 1 in The Netherlands, France 2 will show sport events such as the Tour de France and the Beijing Olympics in HD.
The European Broadcasting Union (EBU) has taken delivery of HDTV MPEG-2 encoder equipment in order to expand capacity on its contribution network.
Supplied by NTT Electronics Corporation, the Encoder HE5100 will allow the organisation’s members to cope with the rising demand for HD content.
This is expected to increase further over the summer with the expansion of HD broadcasts for various major sporting events.