CREATE TABLE table_76680 ("Episode number" FLOAT, "Episode" TEXT, "Rating" FLOAT, "Share" FLOAT, "Rating/Share  ( 18-49 ) " TEXT, "Viewers  ( millions ) " FLOAT, "Rank  ( Overall ) " TEXT)

WHAT IS THE RATING THAT HAD A SHARE SMALLER THAN 4, AND 2.47 MILLION VIEWERS?
SELECT COUNT("Rating") FROM table_76680 WHERE "Share" < '4' AND "Viewers (millions)" > '2.47'
SELECT COUNT("Rating") FROM "table_76680" WHERE "Share" < '4' AND "Viewers (millions)" > '2.47'