CREATE TABLE table_31408 ("No. for season" FLOAT, "No. for series" FLOAT, "Episode" CLOB, "Airdate" CLOB, "Viewers  ( in millions ) " CLOB)

What is the episode name for series number 45?
SELECT "Episode" FROM table_31408 WHERE "No. for series" = '45'
SELECT "Episode" FROM "table_31408" WHERE "No. for series" = '45'