CREATE TABLE "table1_11075747_4" (
  "series_num" real,
  "episode_num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text
);

Question: Who directed Episode 8?
SQL: SELECT "directed_by" FROM "table1_11075747_4" WHERE "episode_num"=8;

Question: Who directed the episode called "Tell-tale Heart"?
SQL: SELECT "directed_by" FROM "table1_11075747_4" WHERE "title"='\"Tell-Tale Heart\"';

Question: What was the original air date for Series 36?
SQL: SELECT "original_air_date" FROM "table1_11075747_4" WHERE "series_num"=36;

Question: Who wrote Series 38?
SQL: SELECT "written_by" FROM "table1_11075747_4" WHERE "series_num"=38;