For other related logos and images, see:
|1968–1977||1977–1979||1979–1981||1981–1983||March–Summer 1983||Summer 1983||1983–1984|
RTP2 was launched on July 25, 1968, occupying two hours of RTP1's schedule during the night time. Despite this, there was no official logo for the network since the logo used was the main RTP logo and in order to distinguish the two channels and though RTP2 was the legal name, the channel had to be identified as II Programa until 1977.
RTP2 (first era)
The first logo of RTP2 was launched in October 16, 1977.
RTP changed their logos in the anniversary of RTP, in October 7, 1979.
In February 1981, a new logo was launched. It was used until March 1983
In March 1983, a new ident, whose music was a crescending synthesizer tune which sounded very similar to THX's Deep Note. Network ID
By the summer of 1983, new logo was launched.
In July 17th, 1983, the third logo of this year was launched.
In October 7th, 1983, in the anniversary of RTP, both channels (RTP1 and RTP2) had received new idents.
In late 1985, a new logo was adopted. The logo contains a red 2 drawn out of three lines and the RTP wordmark in blue underneath. Network ID
In December 2nd, 1988, both channels had received new idents (RTP1 and RTP2).
RTP Canal 2
In July 1989, RTP2 was renamed as RTP Canal 2.
In September 17th 1990, RTP Canal 2 changed its logo. The logo has a white "2" with RTP words on the right. Despite this, the designation on air was maintained RTP Canal 2.
In September 14th 1992, RTP2 became TV2. The logo has a silver "TV" words with the yellow ribbon forming a "2".
RTP2 (second era)
In April 29th 1996, TV2 was renamed again as RTP2. The logo had a yellow box with the number "2" inside with the "RTP" words on the bottom. (different for RTP1).
Same as the RTP1, RTP2 had a slight update in October 12th 1998.
On January 28th 2002, RTP2 gained a new look, and the "2" became dark red (white during on-air).
As part of the restructuring plan for the RTP group in 2003, RTP2 was relaunched as 2: (a dois, the two in english), also known as A Dois, in December 5, 2003. The logo was designed by Brandia Central. The new channel was fully dedicated to civil society and operated by RTP. The 2: has 14 squares forming a "2" and 2 squares forming a ":". 
RTP2 (third era)
In September 19th, 2007, A Dois was renamed again as RTP2. The logo was very different than the RTP1.
Identity designed by Brandia Central.
On May 9th, the channel introduced its new look at 21:00 (GMT).