CREATE TABLE table_name_38 (time___et__ VARCHAR, location VARCHAR, opponent VARCHAR)

What time did the game featuring the Detroit Lions at Three Rivers Stadium occur?
SELECT time___et__ FROM table_name_38 WHERE location = "three rivers stadium" AND opponent = "detroit lions"
SELECT "time___et__" FROM "table_name_38" WHERE "detroit lions" = "opponent" AND "location" = "three rivers stadium"