Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_15211468_1 (uk_broadcast_date VARCHAR, countries_visited VARCHAR)

### Question ###
What was the UK broadcast date for the episode which visited USA?

### Accurate SQL ###

SELECT uk_broadcast_date FROM table_15211468_1 WHERE countries_visited = "USA"