Complex sentence: During the late 1980s and early 1990s, KOCB adopted a very slick on-air look, for mid-sized market independent standards and used CGI graphics of near network-quality.
Split into simpler sentences: During the late 1980s and early 1990s, KOCB adopted a very slick on-air look by middle-market independent standards. It was known for using CGI graphics of near network-quality.