Scooby-Doo Meets the Boo Brothers is an animated comedy made-for-television film that was aired/released on October 18, 1987 as part of the Hanna-Barbera Superstars 10 series.
After the death of Shaggy's uncle Colonel Beauregard, he, Scooby, and Scrappy arrive at his uncle's plantation to collect the inheritance. But as soon as they show up, they find out that it is haunted by the ghost of a confederate soldier. With this spook on their tails while they search for Shaggy's inheritance, they hire the Boo Brothers, a trio of goofy ghost exterminators, to help catch that nasty ghoul. The only thing is, the Boo Brothers are also ghosts.