CREATE TABLE table_16563 ("#" FLOAT, "Episode" TEXT, "Air Date" TEXT, "Time slot  ( EST ) " TEXT, "Rating" TEXT, "Share" FLOAT, "18-49  ( Rating/Share ) " TEXT, "Viewers  ( m ) " TEXT, "Rank  ( Overall ) " TEXT)

Which air date had the 18-49 rating/share of 3.3/9
SELECT "Air Date" FROM table_16563 WHERE "18-49 (Rating/Share)" = '3.3/9'
SELECT "Air Date" FROM "table_16563" WHERE "18-49 (Rating/Share)" = '3.3/9'