IIRC, it ran as a several-night miniseries, so that would account for the length. And, yes, it had John Larroquette in it.
It was okay, but not great; the story got old rather quickly. You can only do so much with a fairy tale character before it changes beyond the pale. I was more interested in the costuming than anything else (always looking for good ideas for faire garb).
Lady Niniane