CTpvr version 2.1 is out, and while the software isn't as well known as PC based PVRs like Windows Media Center, SageTV, or BeyondTV, CTpvr does have a few nifty features, like support for picture-in-picture.

Here's some of the new features in version 2.1:

• CTpvr now includes its own subscription-free TV listing data, with support for multiple channel lineups.
• Support for alternate composite video input
• Additional hardware support
• Some UI tweaks
• Import video, music, and recording information via plugins
• Play movie trailers for files stored in video libraries

CTpvr is available for $30, or you can run a free trial version for 15 day.

[via Missing Remote]