CREATE TABLE table_21976 ("Episode" TEXT, "Broadcast date" TEXT, "Run time" TEXT, "Viewers  ( in millions ) " TEXT, "Archive" TEXT)

How many million viewers watched the episode that runs 25:55 minutes?
SELECT "Viewers (in millions)" FROM table_21976 WHERE "Run time" = '25:55'
SELECT "Viewers (in millions)" FROM "table_21976" WHERE "Run time" = '25:55'