MythTV

MythTV is a free, open source media center and digital video recorder (DVR) distributed under the terms of the GNU GPL. With its plugin architecture, MythTV can be transformed into a home media center suite, capable of managing your personal photo, video, and music collections, as well as keep you up to date with the weather, a ZoneMinder home security system, and much, much more.

Features:

• Watch and record analog and/or digital TV, including HDTV.
• Pause, skip, and rewind live TV shows.
• Completely automatic commercial detection/skipping, with manual correction via an intuitive cutlist editor.
• Intelligently schedules recordings to avoid conflicts.
• Parental controls to keep your kids out of the good shows.
• Watch and archive DVDs.
• Listen to your digital music collection.
• Schedule and administer many functions remotely via a web browser.
• Flexible client/server architecture allows multiple frontend client machines to access content served by one or more backend servers (although the most common installation consists of a single computer running both the client and server together).
• Many more...