What are all values for viewers for 1st season?
CREATE TABLE "u_s_television_ratings" (
  "season" text,
  "timeslot" text,
  "premiere" text,
  "finale" text,
  "tv_season" text,
  "ranking" text,
  "viewers_in_millions" text
);
SELECT "viewers_in_millions" FROM "u_s_television_ratings" WHERE "season"='1st';