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_24399615_4 (viewers VARCHAR, bbc_three_weekly_ranking VARCHAR)
  ### Question:
  How many items are listed under viewers column when the bbd three weekly ranking was 1?
  ### Answer:
  SELECT COUNT(viewers) FROM table_24399615_4 WHERE bbc_three_weekly_ranking = "1"