Answer:
Product Differentiation
Step-by-step explanation:
Product Differentiation is the market strategy employed by an organization whereby a unique, marked characteristic difference is introduced in their product or services in order to gain competitive advantages over competitors in the same niche of business.
The introduction of distinct differences such prices, quality or services covered makes the product more attractive to a particular target market and ensures unique selling proposition of the product.
From this question, ProtecTV is the only product of its kind that has an expandable dictionary among other products where parents can prevent their children from hearing objectionable language while they watch television.