MythTV has good GUI. Using it you can easily define any options, schedule recording or view already recorded files. But web interface is also might be useful. Mythweb offers you access to the MythTV options, schedule and recorded data via web. Just type following URL in your browser:
In my case I got error message:
Directory index forbidden by rule
It happened because package mythweb was installed but directory /var/www/mythweb was empty. I removed mythweb package (it was removed also pluto-mythtv-plugin)
apt-get remove mythweb
and installed it again together with pluto-mythtv-plugin
apt-get install mythweb pluto-mythtv-plugin
After rebooting the core I accessed to the MythTV web interface.