What was the title in season #8?
CREATE TABLE "table1_21146729_6" (
  "series_num" real,
  "season_num" real,
  "title" text,
  "director" text,
  "writer_s" text,
  "original_airdate" text
);
SELECT "title" FROM "table1_21146729_6" WHERE "season_num"=8;