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_15026994_2 (episode VARCHAR, viewing_figure VARCHAR)
### Question:
What are all episodes with a viewing figure of 6.72 million?
### Answer:
SELECT episode FROM table_15026994_2 WHERE viewing_figure = "6.72 million"