What is the name of the episode that had 8.51 million viewers?
CREATE TABLE table_26139405_1 (
    title VARCHAR,
    viewers__in_millions_ VARCHAR
)
SELECT title FROM table_26139405_1 WHERE viewers__in_millions_ = "8.51"
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 name of the episode that had 8.51 million viewers? ### Input: CREATE TABLE table_26139405_1 (
    title VARCHAR,
    viewers__in_millions_ VARCHAR
) ### Response: SELECT title FROM table_26139405_1 WHERE viewers__in_millions_ = "8.51"