CREATE TABLE table_27483 ("No. in series" TEXT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "U.S. viewers  ( millions ) " TEXT, "Original U.S. air date" TEXT, "Prod. code" TEXT)

What number episode in the series had a production code of 110?
SELECT "No. in series" FROM table_27483 WHERE "Prod. code" = '110'
SELECT "No. in series" FROM "table_27483" WHERE "Prod. code" = '110'