I believe this is _[Mirror, Mirror][1]_ (1995–1998).

> When Jo Tiegan is given a mirror as a gift by the elderly owner of an antique shop, she is amazed to see another girl's image in the mirror instead of her own reflection.
When Jo Tiegan is given a mirror as a gift by the elderly owner of an antique shop, she is amazed to see another girl's image in the mirror instead of her own reflection.


  [1]: https://www.imdb.com/title/tt0112073/?ref_=ttkw_kw_tt