TERRORVISION

On an alien planet named Pluton, an alien garbage disposal converts a monstrous mutant called a Hungry Beast into energy and beams it into space. Meanwhile, on Earth, the Putterman family is getting satellite television, courtesy of a temperamental DIY satellite antenna. The reception is poor at first, but suddenly strengthens when a bolt of the alien energy hits the dish.

Sherman Putterman and his ex-military, survivalist grandfather set out to enjoy a night of horror films hosted by the buxom Medusa. Meanwhile, Sherman's parents go out to meet some swingers and his sister Suzy goes out with her rocker boyfriend O.D. Sherman and his grandfather eventually fall asleep, but are awakened when the Hungry Beast materializes out of the TV and eats the grandfather. Sherman's parents later arrive along with swingers Cherry and Spiro. Despite Sherman's plea, his mother locks him in the fallout shelter so he will not ruin their evening.

Sherman tries calling the police, but they take him to be a prank caller. He also calls Medusa, but she dismisses him as a psychotic. Later, the Beast travels through the television into the house's sex-themed "Pleasure Dome", eats Cherry, and imitates her to lure Spiro. Sherman's parents also get eaten after they discover the remains of the swingers. Sherman uses some plastic explosive to break out of the bunker as O.D. and his sister arrive.

Sherman's sister does not believe his story about a monster, and when they check their parents' room, they find imitations of them, their grandfather and the swingers. Soon after though, they encounter the Beast in another room. It chases after them, but relents at the sight of O.D.'s heavy metal paraphernalia, which he finds appealing due to its resemblance of his caretaker's gloves. They then discover that they can subdue the Beast with food and television, and teach it a few words such as "TV", "music" and their names. They consider using the Beast for profit, and call Medusa in the hope of securing a TV appearance. She is initially dismissive, but shows interest when they promise to hold a party.

However, the Beast becomes enraged and eats O.D. when its alien captor appears on the TV to warn the earthlings that they must destroy their television equipment to prevent the Beast from spreading; The alien had overreacted to the announcement from Pluthar, the alien captor, and O.D. provoked the monster in an attempt to calm it down. A police officer arrives to arrest Sherman for the prank calls only to be eaten by the Beast. Sherman breaks all the TVs he can find, and eventually Pluthar appears through the television to exterminate the Beast. Medusa arrives at the house and kills Pluthar, mistakenly believing that he is in fact the Beast that Sherman and Suzy have described to her. When the real monster arrives, it sucks the group of three into its mouth with a powerful gust of air.

The next morning, Medusa's chauffeur is woken up by a crude imitation of his employer hiding in the back seat of his car, demanding to be taken to the TV station.

The Hungry Beast devours the main characters after a failed rescue attempt involving the alien Pluthar and horror host Medusa, who mistakenly destroys the helper instead of the monster.

The ending satirically underscores the chaos that ensues when unchecked media (and monsters) invade domestic life. The Putterman family's demise, despite help from both their own efforts and the alien Pluthar, reflects the film’s darkly comedic take on the dangers of technology and suburban obliviousness.