What is the date of the episode in which the presenter is Johnny Vaughan?
CREATE TABLE table_20466963_4 (date VARCHAR, presenter VARCHAR)
SELECT date FROM table_20466963_4 WHERE presenter = "Johnny Vaughan"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_20466963_4 (date VARCHAR, presenter VARCHAR) Question: What is the date of the episode in which the presenter is Johnny Vaughan? [/INST] SELECT date FROM table_20466963_4 WHERE presenter = "Johnny Vaughan" </s>