There are five videos viewable by all membership levels. The first is an extraordinary game walkthrough, then an endgame lesson, an opening lesson, and two videos teaching the rules:
http://www.chess.com/video/player/meeting-gm-khachiyan-exchange-sacrifice
http://www.chess.com/video/player/rb-v-r-the-defense
http://www.chess.com/video/player/shankland-teaches-the-najdorf-6bc4-part-1
http://www.chess.com/video/player/play-chess-today-part-i
http://www.chess.com/video/player/play-chess-today-part-2
All other videos are only fully viewable by diamond members, with a 3-4 minute demo for other members.
I am a basic chess.com member that is free and easy and I managed to watch two comple 23 minute videos 3 days back without being a diamond member .. but now i only get to 4 minutes demos ... can anybody clear me abt this ...