Table: tv_show_ratings_8
Columns: episode
air_date
rating
share
18_49_rating_share
viewers_m
rank_timeslot

Question: what is the lowest viewers (m) when the share is more than 13?
SQL: SELECT MIN("viewers_m") FROM tv_show_ratings_8 WHERE "share" > 13

Question: what is the average rating when the air date is november 23, 2007?
SQL: SELECT AVG("rating") FROM tv_show_ratings_8 WHERE "air_date" = 'november 23, 2007'

Question: what is the total viewers (m) when the rating is 6.4 and the share is more than 11?
SQL: SELECT COUNT("viewers_m") FROM tv_show_ratings_8 WHERE "rating" = 6.4 AND "share" > 11