Complex sentence: The CRTC announced in 1989 it would close the loophole for information and sports programming, which included "Canada in View", though it provided a temporary reprieve for existing productions, but only until the end of participating stations' licence terms.
Split into simpler sentences: The CRTC announced in 1989 it would close the loophole for information and sports programming, which included "Canada in View". However, it provided a temporary reprieve for existing productions, but only until the end of participating stations' licence terms.