If you want to offer the same feature to readers on your web site, simply go to any movie page where you'll find a control for Trackable links and embeds. Click on that to get code you can embed on your own site. The watchlist widget is available now for all films, and we'll have it for TV shows very soon!
Eye On-Demand is a great resource for finding out more about watching TV over the internet. If you want to find out more about what's available where you live, which service is right for you, or how to watch on different devices, they've got all the information you need.