This Old House kicks off the second project of their 35th Anniversary Season: an addition to a 1966 Colonial in historic Lexington, Mass. Homeowners Jeremy and Jody Kieval love the neighborhood but they'd like a curb appeal makeover that includes a new farmer's porch. Jeremy loves to cook, so the 45+-year-old kitchen will be gutted and redesigned. Jody laments the lack of mudroom...