Ever been in a public venue with a TV on but the sound muted, or replaced by music for “ambiance”? It can be frustrating, and doubly so if it’s a sporting event you want to enjoy. Fortunately we’re living in the 21st Century, so there’s an app for that! If it’s a broadcast program, the Tunity app can figure out what you’re seeing and let you enjoy the audio right off your smartphone. Here’s how it works…