CREATE TABLE table_204_840 (id DECIMAL, "no. in\ series" DECIMAL, "no. in\ season" DECIMAL, "title" TEXT, "directed by" TEXT, "written by" TEXT, "original air date" TEXT, "prod. code" TEXT)

quiz show aired on march 21 , 1997 . what was the name of the next episode ?
SELECT "title" FROM table_204_840 WHERE "no. in\nseason" = (SELECT "no. in\nseason" FROM table_204_840 WHERE "original air date" = 'march 21, 1997') + 1
SELECT "title" FROM "table_204_840" WHERE "no. in\nseason" = (SELECT "no. in\nseason" FROM "table_204_840" WHERE "original air date" = 'march 21, 1997') + 1