It must be springtime as Roku today introduced its 2024 Pro Series of mini-LED 4K TVs and announced new features for its forthcoming OS 13 update. The new TVs are offered in 55- ($900), 65- ($1,200), and 75-inch ($1,700) screen sizes and feature Roku Smart Picture Max processing, which uses artificial intelligence (AI) to automatically select the optimal picture mode based on what you’re watching and adjust color, contrast, and sharpness scene-by-scene in real-time.