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_name_54 (viewership__millions_ INTEGER, broadcast_date VARCHAR)
### Question:
What is the lowest viewership in millions of the episode broadcast on 7 September 2001?
### Answer:
SELECT MIN(viewership__millions_) FROM table_name_54 WHERE broadcast_date = "7 september 2001"