It was originally a joint-venture between PT Multimédia, Lusomundo and the television broadcaster Radiotelevisão Portuguesa (the old RTP).

On 19 September 2011, RTPN was renamed RTP Informação, beginning with a simulcast of Bom Dia Portugal [pt] which refreshed its graphics.

[2] On 15 September 2015, the date of rebrand was confirmed to be 5 October, RTP's director of programmes Daniel Deusdado told the media.

Unlike the other national RTP channels, RTP3's continuity and playout is handled at the Monte da Virgem studios, near Porto.

[3] Despite being a news-based channel, occasionally RTP3 also airs some sports programming, such as the Olympics and the FIFA Confederations Cup.