Table: tv_episode_data_2
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
u_s_viewers_millions

Question: How many millions of U.S. viewers watched the episode "Buzzkill"? 
SQL: SELECT COUNT("u_s_viewers_millions") FROM tv_episode_data_2 WHERE "title" = '"Buzzkill"'

Question: How many episodes were watched by 12.72 million U.S. viewers?
SQL: SELECT COUNT("written_by") FROM tv_episode_data_2 WHERE "u_s_viewers_millions" = '12.72'

Question: How many millions of U.S. viewers watched the episode directed by Rob Bailey and written by Pam Veasey?
SQL: SELECT "u_s_viewers_millions" FROM tv_episode_data_2 WHERE "directed_by" = 'Rob Bailey' AND "written_by" = 'Pam Veasey'