1970 - Ch 5 Launches
April 1970. Channel 5 is launched with a televised official opening with parliamentary dignitaries and sneak previews of many new American programs.
There seems to have been a problem finding a catchy call sign with some articles in the Chronicle at the time calling it Channels 4, 5 and 10. 
In September 1974, Channel 5 moved from Mt.Lofty to a translator at Picnic Point.