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_29273115_1 (original_air_date VARCHAR, written_by VARCHAR)
  ### Question:
  On how many different dates was the episode written by Charlie Day aired for the first time?
  ### Answer:
  SELECT COUNT(original_air_date) FROM table_29273115_1 WHERE written_by = "Charlie Day"