When was episode 2x11 aired for the first time?
CREATE TABLE table_23439 (
    "Episode" text,
    "First broadcast" text,
    "Rufus guest" text,
    "Marcus guest" text,
    "Winner" text
)
SELECT "First broadcast" FROM table_23439 WHERE "Episode" = '2x11'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: When was episode 2x11 aired for the first time? ### Input: CREATE TABLE table_23439 (
    "Episode" text,
    "First broadcast" text,
    "Rufus guest" text,
    "Marcus guest" text,
    "Winner" text
) ### Response: SELECT "First broadcast" FROM table_23439 WHERE "Episode" = '2x11'