Key demographic
The key demographic or target demographic is a term in commercial broadcasting that refers to the most desirable demographic group to a given advertiser. Key demographics vary by outlet, time of day, and programming type, but they are generally composed of individuals who are younger and more affluent than the general public: young adult viewers (defined by some sources as the 18–34 age group) have been television's main target demographic for decades, having a relatively high disposable income and lower brand loyalty compared to other age groups.