CREATE TABLE "table1_17901155_4" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_u_s_air_date" text,
  "prod_code" real,
  "viewers_millions" text
);

Question: Which US air date had 4.4 million viewers?
SQL: SELECT "original_u_s_air_date" FROM "table1_17901155_4" WHERE "viewers_millions"='4.4';

Question: How many million viewers watched episode 6?
SQL: SELECT "viewers_millions" FROM "table1_17901155_4" WHERE "no_in_season"=6;

Question: Who was the directed for the episode titled "twister: part 1"?
SQL: SELECT "directed_by" FROM "table1_17901155_4" WHERE "title"='\"Twister: Part 1\"';

Question: What episode number was titled "my oh maya"?
SQL: SELECT MIN("no_in_season") FROM "table1_17901155_4" WHERE "title"='\"My Oh Maya\"';