When was the station WLS-TV owned since?
CREATE TABLE table_22329326_1 (owned_since VARCHAR, station VARCHAR)
SELECT owned_since FROM table_22329326_1 WHERE station = "WLS-TV"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_22329326_1 (owned_since VARCHAR, station VARCHAR) Question: When was the station WLS-TV owned since? [/INST] SELECT owned_since FROM table_22329326_1 WHERE station = "WLS-TV" </s>