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_29 (date VARCHAR, region VARCHAR, format VARCHAR)
### Question:
When did the United Kingdom format a stereo LP?
### Answer:
SELECT date FROM table_name_29 WHERE region = "united kingdom" AND format = "stereo lp"