In our Diwali special, we show you a unique artificial intelligence-enabled VG TV that offers features like shopping and booking movie tickets while watching content. And with Diwali comes the menace of air pollution and in a unique series on air purifiers, we show you the declining quality of indoor air and one air purifier from Dyson that may well be a differentiator. We also take a look at the premium features of a Lenovo Yoga laptop. And it's time for our annual Diwali shopping guide!