[vdr] any way to highlight available channels only??

Hi

Is there a plug-in or mechanism anyone's found to highlight the channels that are available for viewing or recording?

My family complain that when some channel(s) are recording and try to switch channel they get "CHANNEL NOT AVAILABLE" and would like to be able to see from the channel list which channels can be viewed before they try and switch.

Even though my VDR setup has 2x tuner cards, my provider sends channels on 8 transponders and sometimes I'm recording 2 channels on different transponders which really limits what can be viewed.

Any ideas?

Thanks Simon