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_name_84 (time VARCHAR, news_freq VARCHAR, show_name VARCHAR)

### Question ###
Which time has a news frequency of 1 hour and show name of Best Mix Overnight?

### Accurate SQL ###

SELECT time FROM table_name_84 WHERE news_freq = "1 hour" AND show_name = "best mix overnight"