If I remember correctly, the '1SM' campaign was in an effort to cover the loss of advertising of the iconic 1270 ("These are the 12'70s") frequency in November 1978 when Australia bent over to Geneva and went to 9 kHz steps instead of 10. 1269/1107/954 just didn't cut it for me! Only daggy 2CH AM 1170 didn't need to change - and now it's gone! 'Forever on the AM dial' - yeah, right! Why do people lie like that?