CREATE TABLE "series_3" (
  "episode_no" real,
  "airdate" text,
  "viewers" real,
  "bbc_three_weekly_ranking" real,
  "cable_rank" real
);

Question: How many times did episode number 8 air?
SQL: SELECT COUNT("cable_rank") FROM "series_3" WHERE "episode_no"=8;

Question: When did episode number 6 air?
SQL: SELECT "airdate" FROM "series_3" WHERE "episode_no"=6;