Complex sentence: Other favorably remembered Filmation series included a 16-part animated serial of "Flash Gordon" originally intended as a movie for theatrical release,'; the original film edit was only aired thrice on NBC, years after the series was canceled.
Split into simpler sentences: Other favorably remembered Filmation series included a 16-part animated serial of "Flash Gordon", originally intended as a movie for theatrical release,'. The original film edit was only aired thrice on NBC, years after the series was canceled.