RTP1 (1955-1990)

1st Logo (1976-1980)
Logo: On a black background, a white "1" suddenly slides in, with a light gray trail with a gray streak coming behind it. The "1" goes off-screen before sliding back in. The letters "Cooper" then appear one by one in black.

Technique: The "1" sliding in and the text appearing. The logo reverses after the commercial break.

Music/Sounds: A loud piano ditty.

Availability: Extinct.

2nd Logo (February 1981-March 21, 1983)
Logo: On a black background, four red stars quickly zoom in and spread out into more stars before disappearing. A blue box with a light yellow border, a "1" attached on the top and "Cooper" on the bottom fades in and zooms out.

Technique: The stars moving and the logo zooming out.

Music/Sounds: A dark and creepy bell tune.

Availability: Extinct.

3rd Logo (July-October 17, 1983)
Logo: On a space background, the red and white letters "Serif", "Serif", and "Serif" fly into place as a "1" in the same colors flies into place. The letters stay in place for a second and then fly off screen as the "1" zooms up to take the entire screen. A star shaped flash appears, spins, and shrinks on the "1".

Technique: The spinning letters and flash. This may be early CGI, and if so, the work here is pretty ahead of its time.

Music/Sounds: A calmer synth theme.

Availability: Extinct.

4th Logo (October 18, 1983-March 22, 1984)
Logo: On a black background, two sets of stripes are drawn in, with the stripes on one being green, red, and yellow, and the other having the same colors but with blue instead of green. While they are being drawn in, the letters "Serif", in blue with a white outline, flip in one by one. The stripes curve and then collide with each other. The logo zooms in towards the middle of the collided stripes and expand. A white "1" inside a red circle with a white outline zooms in as the stripes disappear.

Technique: Everything. Primitive animation.

Music/Sounds: A synth xylophone tune.

Availability: Extinct.

5th Logo (March 23, 1984-November 1985)
Logo:
 * Normal: On a black background with multicolored lines and flashing dots, "RTP 1" in a Sinaloa font zooms in as a red rectangle zooms out. They then come together to form the logo.
 * Nighttime: On a blurry shot of a night sky projection, the camera slides out to reveal a camera shrouded in darkness. "RTP" zooms in while flipping in and the "1" zooms out. When they meet, a red rectangle fades in.

Technique: The text and box zooming.

Music/Sounds: A synth tune that has a warble effect on the last note. The nighttime version has a dreamy piano arpeggio.

Availability: Extinct.

6th Logo (November 1985-October 17, 1986)
Logo: On a black background, two lights draw a box made of shining blue and red lines (which is a stock template from Cascom). The RTP1 logo for the time, which is the text in a white rectangle with a diagonal cut near the "1", zooms in. When the logo meets the center of the box, it fades out.

Technique: 2D animation and the Cascom stock template.

Music/Sounds: A piano tune with twinkles near the end.

Availability: Extinct.

7th Logo (October 13, 1986-November 1988)
Logo:
 * Normal 1: On a black background, a small white circle is seen in the middle of the screen. It then zooms in as a cube, a blue sphere, and a red pyramid spin around the circle. When they are close enough to the screen, the shapes compress into a "1" shape and the "Serif typeface slides out. The sphere then turns 2D.
 * Normal 2: On a light blue background with a black floor, a spinning red pyramid drops down and lands onto the floor. A spinning cube also drops down and lands onto the floor. A blue sphere rolls into its place and the pyramid stops spinning. The camera pans down to a black background as the shapes come together to form the logo. The "1" fades in and the "Serif" typeface slides out.
 * Short: On a black background, the shapes quickly flip and fly into place while in 2D. When they come together, the rest of the logo appears and turns to 3D, either turning to the left or right.
 * Sign-On: On a space background, what appears to be a meteor zooms into the darkness, faintly flashing in white at one point. A diagonal white line expands outwards while off center and flips towards the screen, forming a red square that rotates before turning into a cube with and blue sides. The blue section overtakes the entire screen, as white lines form on it. A flash then appears and the blue screen opens up, revealing a land of red circuit lines running through a  board, with sparks in them as well. A sky is also seen, as well as blue, red, and  pyramids. The camera zooms towards the pyramids, and the board slides away to reveal a yellow ground. The camera spins around the pyramids a bit, before they rise out of the ground and turn into cubes. They spin around a bit and the blue cube takes up the whole screen, before the cubes become spheres on a dark blue background. They zoom out and revolve a bit, before the blue sphere comes up to the screen again. It zooms out and reveals the shapes from the normal logo on a black background. They take their usual positions, the "1" appears, and the "Serif" typeface slides out.

Variant: In 1987, the short variant features the RTP 30 Anos logo sliding in, but with the "RTP" text blacked out. The music is also a short version of that logo.

Technique: The spinning shapes. Interesting CGI.

Music/Sounds:
 * A twinkly synth tune.
 * The same tune, but extended for an extra verse.
 * The same tune, but cut down to the 2nd verse.
 * A synth version of the original RTP theme "Derby Day", with choirs, lasers, and other sounds.

Availability: Extinct.

8th Logo (November 1988-September 17, 1990)
Logo: On a black background, we see many glass shapes in different shades of blue. They move to form a box as the camera pans. A glass "1" slides in the space and it turns as the "Serif" typeface, also in, fades in beside it.

Variants:
 * Later on in the logo's usage, "CANAL" appears under "Serif".
 * The startup variant is the same as that of the previous logo, but it fades to the normal version of the logo forming as the spheres rotate.

Technique: The box forming.

Music/Sounds: A majestic synth tune.

Availability: Extinct.