This is a list of Australian television-related events in 1975.

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• 28 February – Television in Australia switches to full-time colour, marking the last day of Australian television in black and white. Colour transmission would launch officially on 1 March on Saturday at 12:00am. Seven Network, The 0-10 Network and ABC stayed on air all night for the occasion.
• 28 February – The ABC airs a spin-off television special of The Aunty Jack Show, called Aunty Jack Introduces Colour. It promotes the introduction of Australian television in colour.
• 1 March – "C-Day" in Australia; full-time colour broadcasting takes effect (except in Darwin).
• 1 March – Australian music program Countdown arrives ^{[citation needed]} on to the scene with a bang by becoming the first program on ABC to be broadcast in colour with Johnny Farnham as the host. That episode was the show's real first episode^{[citation needed]}, besides with the previous series lost.
• 1 March – British children's stop motion animated series The Wombles created by Elisabeth Beresford and narrated by Bernard Cribbins premieres on ABC.
• 21 March – The ABC broadcasts a collection of four comedy specials derived from The Aunty Jack Show titled Wollongong the Brave starting off with "Norman Gunston – The Golden Weeks".
• 12 May – American talk show host and singer Don Lane presents his very own talk show The Don Lane Show with Bert Newton as co host.
• 5 September – The 839th episode (also known as the infamous 'bomb-blast' episode) of the popular Australian soap opera Number 96, which wiped out four regular characters in a bid to reinstate the series' former top rating position, is shown on The 0-10 Network.
• 13 October – Australian news magazine program 11AM hosted by Roger Climpson debuts on Seven Network.
• 27 October - NTD returns to the air in Darwin, for the first time since Cyclone Tracy.
• 13 December – The Federal Election — barely a month after the controversial dismissal of the Whitlam government — gets coverage across all networks.
• TEN10 Sydney launches its first one-hour news service Eyewitness News.
• Graham Kennedy has been banned from making appearances on live television after his infamous "crow call" on The Graham Kennedy Show on Nine Network.

• 1975 in Australia
• List of Australian films of 1975