How many years did BBC One rank 20th?
CREATE TABLE table_103084_4 (year VARCHAR, bbc_one_rank VARCHAR)
SELECT COUNT(year) FROM table_103084_4 WHERE bbc_one_rank = "20th"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_103084_4 (year VARCHAR, bbc_one_rank VARCHAR) Question: How many years did BBC One rank 20th? [/INST] SELECT COUNT(year) FROM table_103084_4 WHERE bbc_one_rank = "20th" </s>