CREATE TABLE table_25748 ("#" TEXT, "Original title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air dates" TEXT, "Prod. code" FLOAT)

Name the written by for prod code being 206
SELECT "Written by" FROM table_25748 WHERE "Prod. code" = '206'
SELECT "Written by" FROM "table_25748" WHERE "Prod. code" = '206'