Complex sentence: The station currently runs no full-length newscast; although it did from 1987 to 1988 and again from 1997 until 2000, it was cancelled due to poor ratings and budget cuts.
Split into simpler sentences: The station currently runs no full-length newscast; it had produced one 1987 to 1988 and again from 1997 until 2000. The latter newscast was canceled due to poor ratings and budget cuts.