CREATE TABLE table_name_84 (time VARCHAR2, news_freq VARCHAR2, show_name VARCHAR2)

Which time has a news frequency of 1 hour and show name of Best Mix Overnight?
SELECT time FROM table_name_84 WHERE news_freq = "1 hour" AND show_name = "best mix overnight"
SELECT "time" FROM "table_name_84" WHERE "1 hour" = "news_freq" AND "best mix overnight" = "show_name"