Well, you have the possibility to select the epg source for each channe yet although a bit hidden.
For DVB-EPG you can select the channels in SetupTV to grab for and each Server Plugin that can grab epg also has a channel mapping, so basically you can do this already.
The timeshifting epg grabber always grabs epg for the channel you are currently timeshifting because i thought that the channels you are watching are automatically the channels you also want epg for but it looks like i was wrong.
I will change this behaviour to only grab the channels that are selected to grab.
Also i will add 2 radio buttons to select either "Grab EPG while idle" OR "Grab EPG while timeshifting".
Would that solve your issues?
__________________ ACCENT HT-100 | 2x16 VFD | ADM Athlon 64 3500+ | Win XP SP2 | SkyStar 2 DVB-S PCI | TT connect S2-3600 |