ATSC 3.0 is evolving into a flexible global platform—shaped by regional innovation, converged delivery, and new network architectures. This session connects three forward-looking developments: Brazil’s TV 3.0 (“DTV+”) as an advanced, market-optimized configuration of ATSC 3.0; broadcast-broadband fallback channels that improve reception and service continuity through seamless OTA-to-IP switching; and ATSC 3.0 B2X architectures aligned with O-RAN principles to enable disaggregation, scalability, and multi-vendor interoperability. Together, these papers highlight how NextGen TV can become more adaptable, reliable, and future-ready worldwide.