In some ways worse are the ones where the network DIDN'T axe the series, but the DVD releases only covered the first couple of seasons. I have two series like that, the most annoying being The Six Million Dollar Man, which I have two seasons of on DVD, and which had I believe FIVE seasons, meaning that not even half the series was available -- and the DVDs themselves were only released in Europe; the USA has never HAD a home release of this show, which is one of the most culturally iconic ever made.