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_26198709_1 (original_air_date VARCHAR, us_viewers__million_ VARCHAR)
  ### Question:
  How many air dates does the episode with 15.50 million viewers have? 
  ### Answer:
  SELECT COUNT(original_air_date) FROM table_26198709_1 WHERE us_viewers__million_ = "15.50"