Complex sentence: WJJY-TV in Jacksonville, Illinois was the primary ABC affiliate for Quincy between 1969 and 1971; when WJJY went bankrupt and shut down, WGEM resumed carrying a few ABC shows.
Split into simpler sentences: WJJY-TV in Jacksonville, Illinois was the primary ABC affiliate for Quincy between 1969 and 1971. When WJJY went bankrupt and shut down in 1971, WGEM resumed carrying a few ABC shows.