BROOMFIELD, Colo., Aug. 27 /PRNewswire-FirstCall/ — Level 3 Communications, Inc. (Nasdaq: LVLT) today announced that the company has completed final testing of its video streaming services in preparation for the last night of the 2008 Democratic National Convention at Invesco Field on August 28. Final preparations included camera tests at the stadium with images encoded and cached over the Level 3 Content Delivery Network (CDN) — a key behind-the-scenes step in delivering live video streaming throughout the four-day event at http://www.DemConvention.com.