This page is an aggregation of custom Comskip.ini files created by various users across the globe. Comskip is used for commercial detection, but it isn't perfect. However it can be heavily customized using the comskip.ini.
Users have created custom version of specific channels in specific countries. Feel free to use them and contribute back to this discussion.
You can find details on customizing Comskip.ini here under Tuning Comskip Commercial Detection ->
Starting v2.4.1 there is a GUI based Comskip INI Editor included in the MCEBuddy\Comskip installation folder. You can use this to understand the various options and edit them through the GUI directly without having to manually edit/understand the options.
The thread for discussing custom Comskip.ini is here -> http://mcebuddy2x.codeplex.com/discussions/433443