Yesterday I found a pretty good program that manages your videos and video feeds for you, it is called miro(http://www.getmiro.com/).
You can also create an account in order to let it know your preferences via your ratings and hence suggest you the most suitable videos for you. Also it plays .avi, .mov, .mpeg files, and probably more. I have already signed up to linux journal and ubuntu team uploads.
And it is easy to use, looks very nice, so I recommend you trying it out.
Things I customized (go to Menu Video -> Options -> Playback):
1. Made all the videos open in a new window.
2. Made it stop after each video. So this way it does not play the whole feed, but just the selected video.
