In 1975, the letters was rounded and outlined purple. Also a marquee was added.
In 1977, the 1968 logo returned, but showing Kentucky Educational TV in the bottom in blue'ly black. The KET text was blue on a yellow background. It was only used on its GED-based programs.
In 1978, a new refreshing logo was introduced, now with the KET text updated, although the 1968 KET text was still used on GED-based programs until 1985. In the 1987-1994 KET theme, the Roland D-50 PN-D50-00 patch "Horn Section" was heard.
Version from 1980-1984.
Version from 1984-1987. This was extremely rare to find.
Version from 1987-1994. Same glossy version, but in white against a gold gradient background.