How Can I Save Un-downloadable Online Video Content to Watch Offline? [Video]

How Can I Save Un-downloadable Online Video Content to Watch Offline? [Video]:
from Lifehacker by Adam Dachis

Dear Lifehacker,
I watch a lot of online video, and it's great when I'm actually connected to the internet, but sometimes I want to finish what I'm watching somewhere Wi-Fi or cellular data doesn't reach. Is there a way I can download videos from YouTube, Hulu, Netflix, etc., so I can view them offline? More »