Catalan public broadcaster TV3 has halted its HDTV transmissions via digital terrestrial.
The broadcasts were the first of their type in Spain.
The decision to end the HD broadcasts was taken to allow Valenciano channel Canal9 to have access to bandwidth as part of an agreement between both the governments of Catalunya and Valencia.
TV3 HD was regarded as the prime HDTV over DTT project in Spain since its launch in April 2007.
Another public broadcaster, Aragón TV, is continuing its HD transmissions.