ABC's push for HD evening news comes to a head tonight, when World News with Charles Gibson and Nightline both hit your screen in 720p from the Democratic National Convention. Besides covering both conventions in HD -- and there'll be plenty of that in the '08 campaign -- when they return to the studio in September the HD love continues. 20/20, Primetime and World News on the weekend will all be HDTV-ready shortly after. B & C reveals ABC News is deploying the same Sony XDCAMs -- full HD newsgathering is on hold 'til 2009 -- used to bring home high definition Survivor this fall, add in a tropical location and it would likely be hard to tell which one we're watching.