Lack of responses in the R&R thread does not mean Joe Public didn't watch it hence bad ratings. Joe Public doesn't post in Simpsons-dedicated forums.
My rating for this episode = 3 out of 5 - was actually sitting at a 4/5 until the trial kicked off in acts 3 and 4. That's when... like the "plot and subplot" episode we had last week... the episode diverged into a blatantly obvious setup for a plotline swerve tied loosely together with some weak jokes. At least this time we got Moe... who is funnier than Krusty and would put on a much more entertaining variety show.
The animation in the HD-era continues to be gorgeous. This is just another victim of the poorly paced four-act structure and an uncharacteristic waste of a guest appearance (would anyone watching at home be able to pick out which of the witches Neve Campbell voiced... they were virtually indistinguishable in personality).
Rod had the best line of the ep. Loved the Wiccapedia. Pleased to see Lisa act her age throughout an episode frought with so much "acting up" potential.