The stakes are high for this $299.99 game console: It’s the follow-up to 2006’s phenomenally successful Wii, which changed gaming forever with its motion-sensing Wii Remote. The Wii U’s key innovation is its GamePad, a game controller with a built-in 6.2” touchscreen. It interacts with your TV in different ways in different games, and has the potential to be a big deal if game developers make good use of it. Also potentially huge: TVii, which combines streaming video from sources such as Netflix with your cable lineup and TiVo recordings. It’s the first time that the famously game-centric Nintendo has poured its heart and soul into a non-gaming feature.