CREATE TABLE "table1_2667438_5" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "prod_code" text
);

Question:  What date did series number 32  premiere? 
SQL: SELECT "original_air_date" FROM "table1_2667438_5" WHERE "no_in_series"=32;