Solved.
I´ve put a python script in /storage/.kodi/userdata/ named autoexec.py
Python
import xbmc, time
time.sleep(2)
#return to homescreen
xbmc.executebuiltin('ActivateWindow(home)')
#sleep long enough for the home screen to come up
time.sleep(2)
#stop PVR addon
xbmc.executeJSONRPC('{"jsonrpc":"2.0", "method":"Addons.SetAddonEnabled", "params":{ "addonid": "pvr.vuplus", "enabled": false }, "id":1}')
#start PVR addon
xbmc.executeJSONRPC('{"jsonrpc":"2.0", "method":"Addons.SetAddonEnabled", "params":{ "addonid": "pvr.vuplus", "enabled": true }, "id":1}')
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