Table: ace_of_cakes_episodes
Columns: season
episodes
season_premiere
season_finale
dvd_release_date

Question: On what date was the DVD released for the season with fewer than 13 episodes that aired before season 8?
SQL: SELECT "dvd_release_date" FROM ace_of_cakes_episodes WHERE "season" < 8 AND "episodes" < 13

Question: Which season had fewer than 13 episodes and aired its season finale on February 20, 2011?
SQL: SELECT COUNT("season") FROM ace_of_cakes_episodes WHERE "episodes" < 13 AND "season_finale" = 'february 20, 2011'