Editing K Rock 95.5 (section)

===3GL original run (1930 - 1990)===
From 1930 to 1990, K Rock was known as '''3GL''' on the AM band, broadcasting first on 1400&nbsp;kHz, then 1350&nbsp;kHz and later 1341&nbsp;kHz.<ref name=recall>{{cite web|title=Geelong: 3GL, 3CAT|url=http://radiorecall.blogspot.com.au/2010/08/geelong-3gl-3cat.html|website=Radio Recall|date=8 August 2010|access-date=2017-02-15}}</ref> Although based in Geelong, it was notable for being received over most of the Melbourne metropolitan area. {{citation needed|date=August 2021}}

3GL gave [[Happy Hammond]] his start in broadcasting in 1948 as a breakfast announcer. While at 3GL, Hammond also made his first TV appearance in 1948, long before the [[Tarax Show]], as part of an exhibition using closed-circuit TV equipment for trial purposes.<ref>''King'', by Graeme Blundell, p.79, {{ISBN|1-4050-3566-8}}</ref> Towards the end of its time as an AM station, 3GL used the ''"3GL on the West Coast"'' slogan and associated jingles, many sung by [[Mike Brady (musician)|Mike Brady]].

For many years, 3GL was based in James Street, Geelong, but relocated after being granted the right to convert to the FM band in 1990.

3GL was offered an FM conversion upon the entry to the Geelong market of competitor BAY FM in December 1989.<ref name=recall/> 3GL converted to FM to allow equal competition in the Geelong regional market, with the management of the former Geelong AM service agreeing to transfer the service to the FM band in 1990. The station was going to drop the 3GL call sign in favour of 3CAT (after the [[Geelong Football Club|Geelong Cats]]), as proposed by the radio station's head of football commentary [[Ted Whitten]] (who at the time was in the early stages of his battle with cancer). However, the official call sign, 3CAT-FM has never been used on-air. Instead, a decision was made to adopt the moniker K-Rock for the station's commencement on the FM band at 95.5&nbsp;MHz, on 27 January 1990.<ref name=recall/>