Table: tv_episode_data_123
Columns: no_in_series
no_in_season
title
directed_by
written_by
original_air_date
production_code
u_s_viewers_millions

Question: What is the title of the episode no. 16 by season?
SQL: SELECT "title" FROM tv_episode_data_123 WHERE "no_in_season" = 16

Question: How many times did an episode with a production code of 12003 was aired?
SQL: SELECT COUNT("original_air_date") FROM tv_episode_data_123 WHERE "production_code" = 12003