A protective indoor TV overlay kit is a set of materials that is used to protect a television that is being used indoors. It typically consists of a clear plastic or acrylic sheet that is placed over the TV screen to protect it from dust, fingerprints, and other contaminants. Some overlay kits may also include additional materials like adhesive strips or brackets to help secure the overlay in place. The purpose of an indoor TV overlay kit is to keep the TV screen clean and free from damage, which can help extend its lifespan and maintain its performance.