The Haunting of Sharon Tate was just a bad idea from the beginning and even if it didn’t poorly exploit the real life tragedy by interjecting an almost fantasy element, the technical aspects were pretty bad as well.
Although uneven in its tone (as it deviates from effective to cheesy drama), I enjoyed Valley of the Dolls particularly for the performances from Barbara Parkins and, especially, Sharon Tate. The writing isn’t the best and I’d actually welcome some sort of modern remake or even a mini-series