XMLTV is a set of applications to process TV (tvguide) listings and manage your TV viewing, storing listings in an XML format. XMLTV is a set of programs to process TV (tvguide) listings and manage your TV viewing, storing listings in an XML format. There are backends to download TV listings for several countries, filter programs and Perl libraries to process listings.

XMLTV is a few things with the same name.
XMLTVFormat: XMLTV is a very popular XML based file format for describing TV listings.
XMLTVModule: XMLTV is a perl module that helps to create XMLTV formatted documents.
XMLTVProject: XMLTV is a collection of tools to obtain, manipulate, and search TV Listings.

XMLTV File format
The format used differs from most other XML-based TV listings formats in that it is written from the user's point of view, rather that the broadcaster's. It doesn't divide listings into channels, instead all the channels are mixed together into a single unified listing. Each programme has details such as name, description, and credits stored as supplements, but metadata like broadcast details are stored as attributes. There is support for listings in multiple languages and each programme can have 'language' and 'original language' details.

At present there are back-ends grabbing TV listings for the following countries
* Australia
* Belgium and Luxembourg
* Brazil
* Argentina
* Britain and Ireland
* Croatia
* Czech Republic
* Denmark
* Estonia
* Europe
* Finland
* France
* Hungary and Romania
* Iceland
* Italy
* Netherlands
* North America
* Norway
* Portugal
* Reunion Island (France)
* Slovenia
* South Africa
* Spain
* Sweden
* Switzerland

The license of this software is Free, you can free download and free use this online tv software.