What are the original air date(s) for season episode 20?
CREATE TABLE table_26866519_1 (original_airdate VARCHAR, season__number VARCHAR)
SELECT original_airdate FROM table_26866519_1 WHERE season__number = 20
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_26866519_1 (original_airdate VARCHAR, season__number VARCHAR) Question: What are the original air date(s) for season episode 20? [/INST] SELECT original_airdate FROM table_26866519_1 WHERE season__number = 20 </s>