Yahoo TV
Please enable Javascript

Javascript needs to be enabled in your browser to use Yahoo TV.

Here’s how to turn it on:

FIFA World Cup introduces goal-line technology

CBSTV Videos
The FIFA World Cup is kicking off in Brazil, and for the the first time, referees will be assisted by technology designed to eliminate scoring controversies.'s Kara Tsuboi explains how the goal-line technology works when a goal looks too close to call.