They actually just use green screens todo this in MLB games. It hasn't been without hiccup :D https://blogs.mprnews.org/newscut/2017/10/virtual-ads-distracting

They actually just use green screens todo this in MLB games. It hasn't been without hiccup :D https://blogs.mprnews.org/newscut/2017/10/virtual-ads-distracting-from-world-series/ https://blogs.mprnews.org/newscut/2017/10/virtual-ads-distra...