Does anyone remember this show that starred Shelley Long? (I think they made only 2 episodes)

Yes. It was about a woman that marries a man with children from a previous marriage. His last name was "Kelly", and her first name is "Kelly", so that's where the show's title is from....one of the children was the the actress who was Crissy on "Growing Pains", and she resented Kelly for marrying her father. Not to mention her obnoxious attitude!