These files are stored in an atsc folder. Try searching for
find / -name atsc
Are you running TVH as a plug-in for XBMC? If so, this is out of my depth. I run XBMC on one embedded system (Raspberry PI) and TVH on another system, Pogoplug. In my setup, the Pogoplug and tuner are in a remote storage room and the Raspberry PI is in the TV room. Once I had the TVH working, the XBMC box found it without installing anything additional.
From a command prompt, type ps -A This will list all running processes on the box regardless of user. Look for a tvheadend entry. If you find such an entry, note the process ID number that is listed as the first entry on that line. For example, if the process ID is 1234, then type kill 1234 to terminate the tvheadend process. Then stop and restart XBMC. Once XBMC is running again, do the ps -A . There should be a new copy of tvheadend running with a new process ID number. I recommend all this because I wonder if stopping XBMC is really enough. XBMC may leave the plug-ins running and you need the start tvheadend to refresh the location file list.
Otherwise, since you are running precompiled code, you need to report the version number of TVH that is included. All my comments are about version 3.2.18, which is the latest. There is a good chance your precompiled code is running an older version and the locations of files and interworkings can be different.
