CREATE TABLE "table1_27910411_1" (
  "no_in_series" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "u_s_viewers_millions" text
);

Question: What date did the episode with 8.28 million u.s. viewers originally air?
SQL: SELECT "original_air_date" FROM "table1_27910411_1" WHERE "u_s_viewers_millions"='8.28';

Question: What episode number of the series is "open water"?
SQL: SELECT "no_in_series" FROM "table1_27910411_1" WHERE "title"='\"Open Water\"';

Question: How many items are listed for U.S. viewers for episode number 5 in the series?
SQL: SELECT COUNT("u_s_viewers_millions") FROM "table1_27910411_1" WHERE "no_in_series"=5;

Question: What date did episode 10 in the series originally air?
SQL: SELECT "original_air_date" FROM "table1_27910411_1" WHERE "no_in_series"=10;