Question: What was the opening year for the stadium in which the WCCW Cotton Bowl Extravaganza was held every year from 1984 through 1988?
Sentence (from "WCCW Cotton Bowl Extravaganza"): The WCCW Cotton Bowl Extravaganza was an annual professional wrestling supercard promoted by Fritz Von Erich's World Class Championship Wrestling / World Class Wrestling Association.
Relevant evidence: Yes