As viewing habits evolve, ad supported television remains the undeniable anchor of the market. Audiences are no longer concentrated in one place; they are moving across a three-pillared system: linear TV, Free Ad Supported TV (FAST), and the ad tiers of other major streaming services. Nielsen media intelligence is your ultimate competitive advantage to understand what people are watching and how they are spending their time between these different ecosystems. This guide explores how each of these ad supported pillars offers a distinct demographic profile. By taking a holistic view and treating these diverse platforms as a single, integrated ecosystem, planners can strategically build scale and connect with target audiences more effectively.