CREATE TABLE table_24174 ("Series #" FLOAT, "Season #" FLOAT, "Title" TEXT, "Director" TEXT, "Writer ( s ) " TEXT, "Original Airdate" TEXT)

How many of the series # when the original airdate is september 25, 1967?
SELECT COUNT("Series #") FROM table_24174 WHERE "Original Airdate" = 'September 25, 1967'
SELECT COUNT("Series #") FROM "table_24174" WHERE "Original Airdate" = 'September 25, 1967'