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_25391981_20 (episode VARCHAR, rating VARCHAR)
  ### Question:
  For what episode was the rating/share for 18-49 at 2.8/8
  ### Answer:
  SELECT episode FROM table_25391981_20 WHERE rating / SHARE(18 AS –49) = 2.8 / 8