Complex sentence: This made-for-television-movie, which aired on Fox, had nothing to do with the previous films, and was a pilot film made in an attempt to reboot the "Omen" franchise into a TV series.
Split into simpler sentences: This made-for-television-movie, which aired on FOX had nothing to do with the previous films. It was pilot film made in an attempt to reboot the Omen franchise into a TV series.