Charmed

In the season 1 episode Wendigo Piper reveals her blood type is AB negative which she states is very rare, and Andy is the only other known character to have that blood type, so Dr. Williamson would have died from blood mismatching as it is unlikely he had the same blood type and Prue and Phoebe have a different blood group to Piper anyway.

Leo explains that Dr. Williamson is quickly going mad because mortals are unable to handle having witches' powers. However, in the season 7 episode Ordinary Witches, the neighbors receive the sisters' powers and while they certainly get a little caught up in the personal gain aspect they do not go crazy. While they only recieved one power each, unlike Dr. Williamson who received all three, Leo never specified he only said powers.

TRIVIA: There are no demons in this episode.

Piper said that they had the elixir and Phoebe said that Dr. Williamson trashed it. Wouldn't Piper have known this since she looked right at the smashed bottle when she was laying on the ground?

When Piper was reading the list at the hospital she said Dr. C. Williamson but the list at the hospital did not say that - the one at the house did.

The list of victims that Piper pulls out of her pocket, when Darryl leaves the house, is not the same one that they printed off at the hospital.

When Piper comes downstairs at the end of the episode, her watch is on her left hand and she has a black bracelet on her right hand. When she is upstairs crying, they are on opposite hands.

When the press cover the Halliwell's front garden, a view of them all there is shown, but it is not the real outside of the Manor. It's not even the outside of the set, it looks as if it's plastic - especially the windows.

Through the entire episode the simians Dr. Jeffries experimented on are called monkeys, when they are actually chimpanzees.

TRIVIA: This is a follow-up to an earlier episode in the same season Awakened, which took place 90 days before the events of this episode.

At the beginning of the episode, when Dr. Williamson is on the phone with his superior, it sounds as if he mispronounces Piper's name, calling her "Pipper" Halliwell.

Why was Piper so excessively upset over Dr. Williamson's death? In previous episodes, the losses of people presumably more important to her, such as Andy (a friend since childhood) and Aunt Gail (a close family-friend), have left Piper much less broken up.

You could clearly see Dr. Jeffries moving even though he was supposed to be frozen.

TRIVIA: In the scene when Piper grieves in her room because she couldn't avoid Dr. Williamson's death, the song playing is "Letting the Cables Sleep" performed by Bush. This episode also features Smash Mouth's song "Then The Morning Comes".

In this episode Phoebe tells Prue that Evan Stone is her perfect man, but she previously said in the earlier season 2 episode "Chick Flick" that Billy Appleby, a movie character, is.

TRIVIA: The Doctor who treated Piper also used 3 chimps to test the sisters' blood and each one had the same name & power as each sister: Prue chimp had telekinesis, Piper chimp had the freezing power, and Phoebe chimp had premonitions.

The Charmed Ones' powers did not make the chimps sick and/or insane most likely because they only received one power each. This theory can be supported by he fact that in the Season 8 episode Ordinary Witches, some of the Halliwells' neighbors receive their powers and do not feel any ill effects.

It's taken the Charmed Ones years to learn how to use their powers. So how did Dr. Williamson master them in a few days?