After checking through the forum, I can see that this issue has been brought up before e.g.http://forum.linuxmce.org/index.php?topic=4348.0
However, I haven't found a resolution.
I have a sky box controlled by a USB UIRT. I can view my sky channels through myth tv and, when I ask it to, it attempts to change channels on my sky box.
The problem is, the UIRT sends too many commands to change channel, and so is useless!
Has anyone resolved this??