Tvheadend

Hello,
recently I installed tvheadend on debian wheezy (Tvheadend 3.2.34~gfaee94b~wheezy).
When configuring DVB adapters, I selected Lithuania. It found many multiplexes (24), but only 6 of them got Network names. Only 4 of them have MuxID.
In the services tab, there are many channels (almost all I need), but only two of them are mapped automatically (got channel name). These two (Lietuvos Rytas TV and BBC World) have their EPG list in the "Electronic program guide" tab. Other channels are not listed in EPG. These channels show an empty pop-up when clicking on the info button in the services tab.
Some time ago I was able to see all the lithuanian unscrambled channels using me-tv, so I suspect the adapter is working.
Could you please help me to sort our what is wrong with my setup?
Where do I find log files?
How can I check step by step - where the problem lies?
Kind regards
Andrius