What date was BBC One total viewing greater then 11616996.338225884?
CREATE TABLE "tv_ratings" (
  "year" real,
  "broadcast_date" text,
  "bbc_one_total_viewing" real,
  "bbc_one_rank" text,
  "bbc_two_total_viewing" text,
  "bbc_two_rank" text
);
SELECT "broadcast_date" FROM "tv_ratings" WHERE "bbc_one_total_viewing">11616996.338225884;