First you will need firefox. Best web browser you can get.
Once you install firefox, now you need to apply some add-ons.
There are several add-ons that will allow you to save the video stream to your hard drive. I prefer download helper, but there are others, and they work just as well.
most of these files are ".flv". So if you want to play them back you will need a media player that can read ".flv" files.
I like VLC:
To enhance fire fox, try using other add-ons: