From LQWiki

What is MythTV ???

MythTV is a "homebrew PVR project", sort of an Open Source TiVo. Jeremy 09:46, November 24, 2006 (EST)

Thanks, but what is PVR and what is TiVo ?

A PVR is a "Personal Video Recorder". A TiVo is one of the original PVR's and still one of the most popular. Jeremy 15:52, November 24, 2006 (EST)