Sling today at last began shipping the SlingCatcher, its first device designed to bring digital content to TVs rather than the company's usual opposite approach. The hub has a pair of USB ports that allow it to pipe H.264, MPEG-2/4, WMV and XviD video plus related audio-only formats to the TV from an external hard drive or flash drive, up to and including 720p and 1080i HD clips. A sync app bund