Season 0 Syndication Season 1 Host: Leonard Nimoy Syndication , 1977 Season 2 Host: Leonard Nimoy Syndication , 1977 - 1978 Season 3 Host: Leonard Nimoy Syndication , 1978 - 1979 Season 4 Host: Leonard Nimoy Syndication , 1979 - 1980 Season 5 Host: Leonard Nimoy Syndication , 1980 - 1981 Season 6 Host: Leonard Nimoy Syndication , 1981 - 1982 Season 7 Host: Mitch Pileggi (series revival) Syndication , 2002