Weird Science (TV Series)

Weird Science was a 1994 - 1998 American fantasy sitcom that aired on the USA cable television network. It was based on the 1985 film of the same name, with the characters from the movie portrayed by a new cast. The series follows the adventures of two teenagers (Gary, played by John Mallory Asher, and Wyatt, played by Michael Manasseri) who use their computer to create a virtual woman only to have a freak lightening strike bring their creation to life. Their creation (Lisa, played by Vanessa Angel) has powers similar to a genie; the wishes the boys make often land all three of them in an unexpected situation.

Demon Lisa (Season 4, Episode 13)
During a Halloween party, Lisa is possessed by a cyber-demon, which wants to use her genie powers to take over the world.

Gary and Wyatt's Bloodsucking Adventure (Season 4, Episode 19)
Lisa turns Gary and Wyatt into Anne Rice-esque vampires so that they be cool enough to get into an exclusive club. The boys enjoy using their new vampire powers to hypnotize the beautiful women they find inside the club, not realizing that the place is run by vampires. When Lisa tries to save them, she is hypnotized.