About damn time. ABC is the last major network to make the HD jump but the network is using the Democratic National Convention to premier their nightly news in high definition. Both ABC World News, as well as Nightline, premiers tonight in 720p high definition. Following the DNC, and the Republican Convention after that, World News is going to return to the NY studio which they will, of course, continue the HD tradition. That date, September 8th, also marks the date that 20/20 and Primetime debuts in high definition. Enjoy!