ABC (Australian TV channel)

1956–1965


On the night ABN Channel 2 began transmission in Sydney, this was the first logo seen on-screen.

1965–1975
In 1965, ABC graphics designer, Bill Kennard, who had been experimenting with telerecording of the cathode ray oscilloscope displays, submitted a design which was part of the waveform from an oscilloscope. The letters A-B-C were added to the design and it was adopted as the ABC's official logo. Kennard was presented with £25 for his design.

1975–2001
In 1975 when colour TV came to Australia, the logo was modified with a thicker line and started using the familiar crossover design. This variant of the Lissajous is still used to this day.

2001–2002
With the introduction of digital TV in 2001, ABC TV modified its logo once again, this time giving the logo a 3D metal design, and losing the crossover of the previous logo.

2002–2007
With the celebration of ABC's 80 year anniversary in July 2002, ABC TV again modified the logo by reverting to the "over and under" design, but keeping the 3D silver color. The channel's idents featured elements - fire, leaf and ice, and the slogan was updated to Everyone's ABC. The idents also featured the silver ring that morphs into the ABC logo.

2007–2011
In 2007, ABC TV became ABC1 to avoid confusion with ABC2 which launched three years prior. A preview of the logo released beforehand without the ABC logo and the ominous run-up tagline 'Change is coming' made many Australians fear the ABC were about to retire the Lissajous curve. ABC of course maintained the curve logo upon launch.

2011–2014
In February 2011, ABC1 launched a new look with a redesigned logo and a new tagline, Think Entertainment. The aim of the rebrand was to communicate that ABC1 isn't only a source of news and current affairs, but also a channel for entertainment.

2014–present
The channel renamed itself simply ABC on 20 July 2014, bringing the 1975 Lissajous curve logo back. The change was accompanied with a new slogan: #ourABC. The logo came in a range of colours and also features gradiated areas around the logo's overlap points, simulating a drop shadow.