At Nasul TV is a TV recorded show, free.
I want to be able to find the URL for the video and then to use
wget to download it. How can I achieve this?
More detail is needed. What do you mean by "viewing a link"? Normally you can find the link to video files in the page source, or via the Firebug network tab (if you don't have Firebug, you should get it). It should be something that ends in ".flv", or sometimes ".mp4", and once you have it it's easy to download: just open a terminal and type:
(with the quotes).
Running following command in terminal:
Will let you watch videos in firefox.