Table: episodes_viewers_6
Columns: col
episode
air_date_canada_yyyy_mm_dd
viewers_canada
air_date_netherlands_yyyy_mm_dd
viewers_netherlands

Question: Name the most number for air date 2009/12/29
SQL: SELECT MAX("col") FROM episodes_viewers_6 WHERE "air_date_netherlands_yyyy_mm_dd" = '2009/12/29'