Wish you could build your own Linux-based personal video recorder like the one in Windows Media Center? MythTV does the job, supporting a number of popular video-capture cards, including HDTV versions, and remote controls. Installing and configuring MythTV is not for Linux newbies, however. You can sidestep much of the process by instead downloading and installing Mythbuntu, a Ubuntu Linux variant that comes with MythTV preinstalled.
Note: This link takes you to the vendor’s site, where you can read the installation requirements and instructions as well as download the latest version of the software.