CREATE TABLE table_17257687_1 (air_date VARCHAR2, event_2 VARCHAR2)

On what date was the episode aired where event 2 was Hang Tough?
SELECT air_date FROM table_17257687_1 WHERE event_2 = "Hang Tough"
SELECT "air_date" FROM "table_17257687_1" WHERE "Hang Tough" = "event_2"