CREATE TABLE table_3949 ("Order" FLOAT, "Episode" TEXT, "Original airdate" TEXT, "Timeslot" TEXT, "Viewers  ( millions ) " TEXT, "Nightly rank" FLOAT, "Weekly rank" TEXT)

How many timeslots had viewers of 0.238 million?
SELECT COUNT("Timeslot") FROM table_3949 WHERE "Viewers (millions)" = '0.238'
SELECT COUNT("Timeslot") FROM "table_3949" WHERE "Viewers (millions)" = '0.238'