With the FIFA World Cup weeks away, a banner year of new TV shows, and MLB in full swing across fragmented networks, streaming retention is harder than ever. Tired winback playbooks are losing their edge. Fubo, TikTok, and AppsFlyer share what's actually working: identifying high lifetime-value segments (many of them outside the traditional sports demographic) and reaching them differently, and running a closed-loop model that onboards and continuously re-engages viewers. Plus how creator-driven content converts casual fans into loyal subscribers, how smarter targeting changes the acquisition-to-retention math, and how modern marketing measurement reveals what drives long-term value in today's AI world.