CREATE TABLE "table1_26702204_1" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "director" text,
  "writer_s" text,
  "original_air_date" text,
  "production_code" text,
  "u_s_viewers_million" text
);

Question: What is the production code when the u.s. viewers (million) is 11.76?
SQL: SELECT "production_code" FROM "table1_26702204_1" WHERE "u_s_viewers_million"='11.76';

Question: What was the u.s. viewers (millions) when the production code was 4alh19?
SQL: SELECT "u_s_viewers_million" FROM "table1_26702204_1" WHERE "production_code"='4ALH19';