I am a big fan of the Video Download Professional extension on Firefox.
I watch a lot of YouTube videos (where else can you get your news these days?), so I don’t need something that will download those.
I do, however, use my web browser to watch TV from time to time (okay … so every night), so for me, that extension is a must-have!
Basically what I do is find a particular TV show I want to see on one of the CouchTuner-like sites, start the video playing, pause it, activate the download feature of the Video Download Professional extension, which then saves the file to my hard drive, from which I can watch the show using the multi-platform VLC program … and best of all, I don’t have to be online to watch it once it has been downloaded.
Here’s the link: