NEW YORK (AP) — Dish, a company known largely for its old-school satellite TV, is now trying to make it easier for people to stream quality video live over YouTube and Facebook. Dish is unveiling a wireless device, SlingStudio, meant to enable multi-camera productions without high-end equipment. [...] might a wedding photographer who wants to capture video from guests' smartphones (the system isn't limited to live, online broadcasts and works with recorded events, too).