As i described, TVH was installed on PC on previous Ubuntu version (probably 14).
And stopped to work after upgrade to Ubuntu 18.04.
i tried to remove it completely with sudo apt purge tvheadend and to install it with tvh wiki manual.
user@user-PC:~$ ldd /usr/bin/tvheadend
linux-vdso.so.1 (0x00007ffff3136000)
libdvbcsa.so.1 => /usr/lib/x86_64-linux-gnu/libdvbcsa.so.1 (0x00007fd5d4638000)
libssl.so.1.1 => /usr/lib/x86_64-linux-gnu/libssl.so.1.1 (0x00007fd5d43ab000)
libcrypto.so.1.1 => /usr/lib/x86_64-linux-gnu/libcrypto.so.1.1 (0x00007fd5d3ee0000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007fd5d3cc3000)
libpcre2-8.so.0 => /usr/lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x00007fd5d3a41000)
liburiparser.so.1 => /usr/lib/x86_64-linux-gnu/liburiparser.so.1 (0x00007fd5d3826000)
libavahi-common.so.3 => /usr/lib/x86_64-linux-gnu/libavahi-common.so.3 (0x00007fd5d361a000)
libavahi-client.so.3 => /usr/lib/x86_64-linux-gnu/libavahi-client.so.3 (0x00007fd5d3409000)
libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007fd5d31bc000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007fd5d2fb8000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007fd5d2d99000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007fd5d29fb000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007fd5d27f3000)
libmvec.so.1 => /lib/x86_64-linux-gnu/libmvec.so.1 (0x00007fd5d25c9000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007fd5d2240000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007fd5d1e4f000)
libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007fd5d1bcb000)
/lib64/ld-linux-x86-64.so.2 (0x00007fd5d62cc000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007fd5d19b3000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007fd5d178d000)
liblz4.so.1 => /usr/lib/x86_64-linux-gnu/liblz4.so.1 (0x00007fd5d1571000)
libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007fd5d1255000)
libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007fd5d1040000)