CREATE TABLE table_2410 ("Episode" TEXT, "Broadcast date" TEXT, "Run time" TEXT, "Viewers  ( in millions ) " TEXT, "Archive" TEXT)

When 24:31 is the run time how many millions of viewers are there?
SELECT "Viewers (in millions)" FROM table_2410 WHERE "Run time" = '24:31'
SELECT "Viewers (in millions)" FROM "table_2410" WHERE "Run time" = '24:31'