When 1.12 is the production code what is the original title?
CREATE TABLE "table1_20124413_1" (
  "num" text,
  "original_title" text,
  "directed_by" text,
  "written_by" text,
  "original_airdate" text,
  "prod_code" text,
  "viewers" real
);
SELECT "original_title" FROM "table1_20124413_1" WHERE "prod_code"='1.12';