Table: episodes_table_33
Columns: series
season
title
directed_by
written_by
original_air_date
prod_code

Question: How many people directed "through the looking glass"?
SQL: SELECT COUNT("directed_by") FROM episodes_table_33 WHERE "title" = '"Through The Looking Glass"'

Question: How many people directed episode 7 In the season?
SQL: SELECT COUNT("directed_by") FROM episodes_table_33 WHERE "season" = 7

Question: How many original air dates were there for the episode with production code 212?
SQL: SELECT COUNT("original_air_date") FROM episodes_table_33 WHERE "prod_code" = 212

Question: What is the  production code for "road trip (aka "the kiss")"?
SQL: SELECT "prod_code" FROM episodes_table_33 WHERE "title" = '"Road Trip (aka "The Kiss")"'

Question: What is the production code for episode 31 in the series?
SQL: SELECT MIN("prod_code") FROM episodes_table_33 WHERE "series" = 31