What is Event, when Viewers is 2.4 Million, and when Rating is 1.4?
CREATE TABLE "ufc_on_fox_s_nielsen_rating" (
  "event" text,
  "date" text,
  "rating" text,
  "share" text,
  "viewers" text
);
SELECT "event" FROM "ufc_on_fox_s_nielsen_rating" WHERE "viewers"='2.4 million' AND "rating"='1.4';