CREATE TABLE "table1_26429658_1" (
  "no_in_series" real,
  "no_in_season" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "production_code" real,
  "u_s_viewers_millions" text
);

Question: What is the episode number in the season titled "65 million years off"?
SQL: SELECT "no_in_season" FROM "table1_26429658_1" WHERE "title"='\"65 Million Years Off\"';

Question: How many episodes were directed by Arlene Sanford?
SQL: SELECT COUNT("written_by") FROM "table1_26429658_1" WHERE "directed_by"='Arlene Sanford';

Question: What was the title of the episode with a production code of 2010?
SQL: SELECT "title" FROM "table1_26429658_1" WHERE "production_code"=2010;

Question: How many production codes had a US viewership of 4.43 million?
SQL: SELECT COUNT("production_code") FROM "table1_26429658_1" WHERE "u_s_viewers_millions"='4.43';