copying live video broadcasts

I am looking for a program which will enable me to download/copy a live video broadcast from the internet. For example say the New York Times had a video I wish to watch and feel I would like to refer to at a later date I would like to be able to copy it on to a DVD for future reference. Many websites today have these small videos and to be able to refer to them at a later date they are no longer on their sites.
Any suggestions please.
Thanks
Mathilda

 

this app http://www.downloadhelper.net/can download video streams in firefox as an extension

 

Thanks Pistol.

Any chance of a non firefox app. I can't work some of my programs with Firefox and don't want to "mess up" my computer.

 

the only programs that i can find that'll work on other browsers are paid ones,however this website http://keepvid.com/ will allow you to C/P the url of a video to download,i don't know if it'll work with live streams or not since I've never used it

 

thanks, sounds OK will give it a go. Thanks again for your help.