Red Bull Hart Lines Airs on NBC Saturday, August 1Saturday, August 1, 2015 at 4:30pm EST, Red Bull Hart Lines airs on NBC. We set up two lanes of skateboard shred in dowtown Detroit's Hart Plaza where invited top pros like Ryan Sheckler and Curren Caples came to rip. Catch it all on Saturday, August 1. Check some photos and additional coverage from this amazing day in Detroit here: http://theboardr.com/post/Red_Bull_Hart_Lines_2015_Detroit