Searching for a video is simple. Type in your search term or terms, see the results, then decide which you want to download. You can manage and queue downloads, pause them, resume them, and so on. It looks and works much like many other file-sharing clients.
The Theater feature is useful, because it lets you view the downloaded videos, although you may want to use it primarily to preview your videos, to make sure you've downloaded those you want, then use your favorite video player for viewing.
If you're a parent, be careful with this program. As with all file-sharing software, the files you find may feature adult content. Also, when you install the software, it will ask if you want to make BearFlix your Web home page. Unless you do, make sure to click the Decline button.
Note: This link takes you to the vendor's site, where you can download the latest version of the software.