CREATE TABLE table_21628 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

What is the season number for 'Impulse Control'?
SELECT MIN("Season #") FROM table_21628 WHERE "Title" = 'Impulse Control'
SELECT MIN("Season #") FROM "table_21628" WHERE "Title" = 'Impulse Control'