How many viewers (in millions) were there for the season premiere on September 26, 2010?
CREATE TABLE "season_ratings" (
  "season" real,
  "timeslot_edt" text,
  "season_premiere" text,
  "season_finale" text,
  "tv_season" text,
  "rank" text,
  "viewers_in_millions" real,
  "18_49_average" real
);
SELECT "viewers_in_millions" FROM "season_ratings" WHERE "season_premiere"='september 26, 2010';