CREATE TABLE table_37279 ("Week" FLOAT, "Date" CLOB, "Opponent" CLOB, "Location" CLOB, "Time  (  ET  ) " CLOB, "Result" CLOB, "Record" CLOB)

What time did the game featuring the Detroit Lions at Three Rivers Stadium occur?
SELECT "Time ( ET )" FROM table_37279 WHERE "Location" = 'three rivers stadium' AND "Opponent" = 'detroit lions'
SELECT "Time ( ET )" FROM "table_37279" WHERE "Location" = 'three rivers stadium' AND "Opponent" = 'detroit lions'