Watching a close match can be thrilling, especially at half-time when the...

https://storyquanta.com/s/eFgJ6gQlLBZaIysFPdsun

Watching a close match can be thrilling, especially at half-time when the action pauses and fans turn to their phones for more. Using a second screen, viewers check live stats, chat with friends, update fantasy lineups, or place an optional bet