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_35 (episode INTEGER, performer_4 VARCHAR)
### Question:
What is the average episode number where jimmy mulville was the 4th performer?
### Answer:
SELECT AVG(episode) FROM table_name_35 WHERE performer_4 = "jimmy mulville"