Adding Channel Icons
Credit to plb from the forums. The original post is here: http://ubuntuforums.org/showthread.php?t=331913
1) Install xmltv.
sudo apt-get install xmltv
2) Obtain the script for making an iconmap.
wget "http://svn.mythtv.org/trac/browser/branches/release-0-20-fixes/mythtv/contrib/mkiconmap.pl?format=txt" -O mkiconmap.pl
3) Start mythfrontend.
mythfrontend
4) Run the script.
perl mkiconmap.pl
5) Add to your database.
mythfilldatabase --import-icon-map iconmap.xml --update-icon-map