CREATE TABLE table_235 ("Season" FLOAT, "Season premiere" CLOB, "Season finale" CLOB, "TV season" CLOB, "Ranking" CLOB, "Viewers  ( in millions ) " CLOB)

What tv season had a season finale of august 18, 2004?
SELECT "TV season" FROM table_235 WHERE "Season finale" = 'August 18, 2004'
SELECT "TV season" FROM "table_235" WHERE "Season finale" = 'August 18, 2004'