S8 was horrible and unnecessary from start to finish. S7 had the perfect series finale, except that it wasn't the series finale ultimately.
I'm campaigning for a movie tho. Shannen Doherty would be in it too, so that would slay. The GLOBAL Charmed stanbase is still going strong after all this years and a movie would do some huge damage on the box office undoubtedly.
I can only recall like 2 fairytale-themed episodes (one in S2 and the other in S5 aka the superior one), but enlighten me. I'm planning on re-watching the whole show tho and I'm sure there are a few eps I haven't seen yet.