text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_24057191_2 (end_date VARCHAR, average_viewers__millions_ VARCHAR)
  ### Question:
  How many different end dates are there for the series seen by 4.2 million people?
  ### Answer:
  SELECT COUNT(end_date) FROM table_24057191_2 WHERE average_viewers__millions_ = "4.2"