|Broadcast area||Basque Country and Navarre|
|Headquarters||Bilbao, Basque Country|
|Picture format||16:9 576i (SDTV)|
16:9 1080i (HDTV)
|Sister channels||ETB 2|
|Launched||31 December 1982 (testing)|
16 February 1983 (official)
|Digital||Álava: Channel 45|
Biscay: Channel 35
French Basque Country: Channel 33
Gipuzkoa: Channel 48
Navarre: Channel 26
|Vodafone TV||Channel 7|
The channel began test transmissions on 31 December 1982 and officially launched on 16 February 1983 as ETB, using this name until the launch of its sister ETB 2 on 31 May 1986, at which point ETB was renamed to ETB 1. A HD feed of ETB 1 was launched on 21 December 2016.
Its programming includes: interviews, films, documentaries, sports, youth and children's programmes, making a strong emphasis on sports and children's programming.