Where is riverfront stadium the game site for the week?
CREATE TABLE table_17972136_1 (week INTEGER, game_site VARCHAR)
SELECT MIN(week) FROM table_17972136_1 WHERE game_site = "Riverfront Stadium"
### Context: CREATE TABLE table_17972136_1 (week INTEGER, game_site VARCHAR) ### Question: Where is riverfront stadium the game site for the week? ### Answer: SELECT MIN(week) FROM table_17972136_1 WHERE game_site = "Riverfront Stadium"