With thanks to YouTube user Rewindium here are two more radio station TV commercials. This time, it's MG-1200 (now 104.9 FM Edmonton, Virgin Radio formerly EZ-Rock) during its classic gold music days.
There are two versions of the 1989 ad with the only difference being the backing music. Is that Barry Allen, of Rain Drops fame, at the start of the ads?
Ad #1 (with an ITV bumper to start)
https://www.youtube.com/watch?v=H3RqKMWJO1k
Ad #2
https://www.youtube.com/watch?v=0RRRRJUQbwo