Table: tv_contest_episodes
Columns: episode
contest
original_airdate
challengers_female
challengers_male
events

Question: In what episode did heat 1 take place?
SQL: SELECT "episode" FROM tv_contest_episodes WHERE "contest" = 'Heat 1'

Question: What events took place in episode 12?
SQL: SELECT "events" FROM tv_contest_episodes WHERE "episode" = 12

Question: Which female challengers featured in episode 28?
SQL: SELECT "challengers_female" FROM tv_contest_episodes WHERE "episode" = 28