In 1989, RTP1 was renamed Canal 1, and in 1990, a permanent, opaque and coloured DOG "C·1" was introduced in the upper-right corner of the channel until September 1991, when a smaller "C·1" was placed on the upper-left corner.
In 1998, RTP1 debuted a new ident collection, designed by Novocom, along with its sister channel, RTP2, that featured several motifs such as eyes, or Christmas ornaments during the Holiday season.