If your iPod has an Internet connection you can just stream the video. If you want to watch the videos whenever you want, you will need to download and save those videos. Many of those sites allow downloading of their content for personal, non-commercial use.
Underneath the Gowanus Expressway, in an area generously included in Sunset Park but really not much more than a detritus-strewn, completely forgotten, and rarely traversed stretch of 3rd Avenue, sit a curious collection of shops, glass windows and brick walls routinely rattled as wheelers hurtle by just 10 feet above. Along on a stretch between 39th and 24th Streets, there are eight of these shops, a rate of nearly one per block. They're sex shops, like the ones you could once find in Times Square. The kind that advertise private viewing booths for when the laptop is busted and the WiFi is out and the lock on your bedroom is broken and the bathroom is in use and your imagination is unable to conjure up anything and… you get what I'm getting at.