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 "2-15584441-1" WHERE "Season" < 8.0 AND "Episodes" < 13.0;

Question: Which season had fewer than 13 episodes and aired its season finale on february 20, 2011?
SQL: SELECT COUNT("Season") FROM "2-15584441-1" WHERE "Episodes" < 13.0 AND "Season Finale" = 'february 20, 2011';