Ok, next version will provide a feature for this. Note, file names are specific to the show and episode.
The images must reside in the Media Art directory:
[Gbpvr InstallDir|Gbpvr DataDir]\Media\Art - i.e. c:\Program Files\Devnz\gbpvr\Media\Art
Would have an image named c:\Program Files\Devnz\Gbpvr\Media\Art\16 Blocks.jpg
For episodes, the name resolution is:
3. show - episode.jpg (show name space dash space episode)
It will attempt to build the filename in the order above until it finds a match or end of patterns.
NPVR Server: Win8 / AMD Phenom II X4 965 / 8gRAM / ATI Radeon 7700 Series / Hauppauge 2250
Misc: Multiple Wired-Wireless clients, XMBC Clients, rPI OpenElec client