Name the total number of timeslot for august 9, 2007 finale
CREATE TABLE "seasonal_ratings" (
  "season" real,
  "timeslot_edt" text,
  "season_premiere" text,
  "season_finale" text,
  "tv_season" text,
  "rank_spanish_language" real,
  "viewers_in_millions" text
);
SELECT COUNT("timeslot_edt") FROM "seasonal_ratings" WHERE "season_finale"='August 9, 2007';