MythTV is a free software package to provide PVR functionality and much more – in essence it provide a full home media server. My Myth box is running Fedora 19 and is built around the following hardware:

The digital terrestrial tuners (two SD only and two HD capable) receive the Freeview digital television service and display is via a 28″ Panasonic LCD television. Audio output is via a Sony BDV-E370 home cinema system.

The above configuration is the second generation version of this machine – the original build, in use from 2004 to 2012, used the following hardware:

In a previous incarnation the box was connected to a Hitachi widescreen CRT television using the VGA output from a Leadtek Winfast A180BT GeForce MX4000 AGP card via a home brew VGA-SCART convertor with the following mode definitions:

    ModeLine "704x576pali" 13.6 704 728 792 872 576 581 586 625 -hsync -vsync interlace
    ModeLine "720x576pali" 13.9 720 744 808 888 576 581 586 625 -hsync -vsync interlace

The reason for having two mode definitions is that most UK DVB broadcasts are 720×576 but some channels use 704×576 instead and having two modes allows Myth to be configured so that images never have to be scaled.

Some photos of the MythTV box and VGA-SCART convertor are available.