December 1988 / January – Young Talent Time was rested by Network Ten during the Cricket / Australian Open season. One week into January 1989 the network announced that the show would not return. Reasons given for YTT's axing are very bad ratings, unable to match rivals Seven or Nine.
26 May – Neighbours launches a newly revised theme song, with an overload of new cast members who will be "boned" or "suspended" from the soap indefinitely between now and 1994. Between August and November 1989 Neighbours suffered poor ratings with 290,000 national viewers compared to Seven's Home and Away 1,500,000 nationally. The new-look and re-recorded Neighbours theme was again sung by Barry Crocker, which was used until mid-1994.
23 July – After poor ratings, disgraced network Network Ten is relaunched as 10 TV Australia, introducing a new lineup with increased game show content. Most of the new shows are axed by the end of the year following bad ratings.
29 July – Australian game show The Price is Right, again hosted by Ian Turpie, returns to television airing on 10 TV Australia at 7:30pm on Saturdays as part of the network's attempted revamp. Despite the show returning, only 12 episodes were lasted in the face of stiff competition of AFL coverage on most-watched rival Channel Seven.
21 October – British science fiction sitcom Red Dwarf premieres on ABC.
November – Jacki MacDonald quits Hey Hey It's Saturday after 11 years. McDonald is replaced by Denise Drysdale when the show returns in 1990.
17 November – Australian dating game show Perfect Match airs its final episode on 10 TV Australia. The show was cancelled due to poor ratings, failing to match the success of its 1984 series, which broke records for 5:30pm.
December - The Seven Network wins the 1989 ratings year with a record of 34.0% share.
This is a list of programs which made their premiere on an Australian television network that had previously premiered on another Australian television network. The networks involved in the switch of allegiances are predominantly both free-to-air networks or both subscription television networks. Programs that have their free-to-air/subscription television premiere, after previously premiering on the opposite platform (free-to air to subscription/subscription to free-to air) are not included. In some cases, programs may still air on the original television network. This occurs predominantly with programs shared between subscription television networks.