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_15358729_6 (average_weekly_rank VARCHAR, average_nightly_rank VARCHAR)
  ### Question:
  How many were the show's average weekly ranking when it reached No. 2 in average nightly ranking?
  ### Answer:
  SELECT COUNT(average_weekly_rank) FROM table_15358729_6 WHERE average_nightly_rank = "No. 2"