CREATE TABLE table_46306 ("Season" CLOB, "Timeslot" CLOB, "Premiere" CLOB, "Finale" CLOB, "TV season" CLOB, "Ranking" CLOB, "Viewers  ( in millions ) " FLOAT)

What time did the season finale air on May 20, 2003?
SELECT "Timeslot" FROM table_46306 WHERE "Finale" = 'may 20, 2003'
SELECT "Timeslot" FROM "table_46306" WHERE "Finale" = 'may 20, 2003'