Originally "Forever Knight" was a two-hour made for TV movie pilot titled "Nick Knight (1989)" starring Rick Springfield as the title character.
He was brought across in 1228, Preyed on humans for their blood. Now he wants to be mortal again. To repay society for his sins, To emerge from his world of darkness, From his endless Forever Knight.
The early episodes had actual nude scenes - not involving the regulars - shot for German television but not shown in North America.