The show was cancelled during its first season. It was brought back the next year after the fans staged a letter-writing campaign.
John Masius's original pilot script was much darker than that which was eventually shown on TV (In the original pilot, Tess was a chain-smoking angel who was frequently at Monica's throat.)
According to an interview with Roma Downey, many of the clothes Monica wears in the first season were Downey's own, because she was a such a small size the wardrobe department didn't have anything that fit her.