The tvOS 18.2 update for Apple TV introduces several enhancements, including Snoopy-themed screen savers that adapt to real-time factors, support for wide aspect ratios, and improved audio quality with the Enhanced Dialogue feature. Siri's natural language processing has been upgraded for easier content discovery, alongside a redesigned Podcasts app. The update also includes critical security updates and performance optimizations, ensuring a stable and immersive viewing experience.