When it comes to a recipe, HGTV has the perfect one. Take a beautiful, happy couple in real estate and/or home renovation and/or interior design, capture their lives while they flip or design or renovate a home, give it a snappy title, and you've got a successful HGTV show! The concept of an HGTV power couple has been replicated time after time. There's something about seeing spouses doing their thing that has helped keep the network afloat over the last decade plus.