CREATE TABLE table_74023 ("Season" FLOAT, "Episodes" FLOAT, "Timeslot  (  ET  ) " TEXT, "Season premiere" TEXT, "Season finale" TEXT, "TV season" TEXT, "Rank" TEXT, "Viewers  ( in millions ) " TEXT)

What tv season was episode 23 broadcast?
SELECT "TV season" FROM table_74023 WHERE "Episodes" = '23'
SELECT "TV season" FROM "table_74023" WHERE "Episodes" = '23'