I'm not sure how it works per region. But, if you live in North America, Hulu has the original movie, the full series, and a spinoff movie called Highlander: The Raven that looks like a super low budget scifi channel late night/early morning feature.
Not sure what Netflix has because I canceled my sub. Netflix has pretty much become the worst.
Amazon has the original movie on prime, but nothing else.
Frummunda - Halfling Druid
Spudz - Barbarian Beastmaster
Glenzig- Dwarf Warrior
Chukk- Barbarian Shaman
Rakkety- Halfling Ranger