Complex sentence: Shortly after the series ended, all 66 episodes were added to the previous show's syndication package, continuing on many local stations across the United States in an on-again, off-again manner until 2009.
Split into simpler sentences: Shortly after the series ended, all 66 episodes were added to the previous show's syndication package. This continued on many local stations across the United States in an on-again, off-again manner until 2009.