CREATE TABLE table_73981 ("Episode" FLOAT, "First broadcast Denmark  (  DR1  ) " TEXT, "Official TNS Gallup ratings" FLOAT, "First broadcast UK  (  BBC Four  ) " TEXT, "Official BARB ratings" TEXT)

When was the episode with a 1,036,000 BARB rating first aired in Denmark?
SELECT "First broadcast Denmark ( DR1 )" FROM table_73981 WHERE "Official BARB ratings" = '1,036,000'
SELECT "First broadcast Denmark ( DR1 )" FROM "table_73981" WHERE "Official BARB ratings" = '1,036,000'