Thanks for the reply.
My question was whether I could safely remove myth completely, and was there anything else in addition associated with watching TV that could also be removed. But I will make a clone of the disk and just try it when I get round to it.
But thanks for the tip, I have removed the TV scenario from my orbiters; what I am really interested in at the end of the day is not saving a few MB, rather I'd like to see if it improves the performance of the KDE desktop.
Cheers,
Matt.