What is MythTV?

MythTV is a collection of software which runs under the Linux operating system, and provides the functions commonly known as a PVR or DVR (personal, or digital, video recorder) — essentially, it’s a computerized VCR, similar to a TiVo or a Replay… but since it’s open source software, if you don’t like the way it does something, you can always change it — that’s how much of its current functionality came about in the first place.

In addition to the basic PVR functions of recording and playing back scheduled programs and allowing you to schedule recordings automatically in advance, MythTV has a plugin system which permits it to be extended by other programmers; plugins currently exist for playing external video, viewing photos and listening to music files, using your TV and a web camera as a video-telephone over the Internet, browsing the web, retrieving current local weather, and many other functions.