CREATE TABLE "table1_17467447_1" (
  "series_num" real,
  "episode_num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "u_s_viewers_million" text,
  "original_airdate" text,
  "production_code" text
);

Question: If the product code is 2t6267, who was the director?
SQL: SELECT "directed_by" FROM "table1_17467447_1" WHERE "production_code"='2T6267';

Question: What is the air date when the U.S. viewers was 5.50 million?
SQL: SELECT "original_airdate" FROM "table1_17467447_1" WHERE "u_s_viewers_million"='5.50';

Question: Who were the writers for production code 2t6268?
SQL: SELECT "written_by" FROM "table1_17467447_1" WHERE "production_code"='2T6268';