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In the 1970s it was turned into a disco hall, but Steve Trilby hated it and dressed as the Phantom to "haunt" the place and scare everybody away. The people thought he was part of the show until he destroyed the disco ball. The owner had to close, but it was one day reopened for the Talent Star program.
Scooby-Doo! Stage Fright
Four more phantoms haunted the opera house, but Mystery Inc. captured them all.
- DTV20. Scooby-Doo! Stage Fright