SELECT "Original air date" FROM table_22331 WHERE "Directed by" = 'Di Drew'
If Di Drew is the director, what was the original air date for episode A Whole Lot to Lose?
CREATE TABLE table_22331 (
    "No. in series" real,
    "No. in season" real,
    "Title" text,
    "Directed by" text,
    "Written by" text,
    "Original air date" text
)