[navster]

@xoox - big thanks for your script dude, it has resolved the black screen issues for my setup which is based aound a Tvheadend Ubuntu backend system serving SD only MPEG-2 Freesat UK service to my RPi-TV system in the kitchen and the wife is happy again! I could not find exact instructions on how to use your script for my setup so ended up doing the following which may help somone with a similar setup to mine:

1. copy text from script at https://github.com/polini/TvhPiProxy/blo...piproxy.py
2. open a terminal and type "sudo vi /etc/tvhpiproxy.py"
3. past text from step 1 to file and save
4. change file permission for script execution with "sudo chmod 755 /etc/tvhpiproxy.py"
5. from Ubuntu dash home search for and launch Startup Application
6. Add>Browse>File Sytem>etc>tvhpiproxy.py>open
7. give it a name and comment then click Add>Close
8. reboot Ubuntu host and the tvhpiproxy.py script will now be running from startup
9. go to the RPi and change PVR Add-On HTSP port from 9982 to 9983 and reboot

I still have some issues around buffering and audio sync loss on some channels but am certain these are general XBMC PVR and add-on issues which no doubt the great development community will iron out in good time :-)