What is the first episode number?
CREATE TABLE table_15187735_20 (
    episode INTEGER
)
SELECT MIN(episode) FROM table_15187735_20
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: What is the first episode number? ### Input: CREATE TABLE table_15187735_20 (
    episode INTEGER
) ### Response: SELECT MIN(episode) FROM table_15187735_20