Tandberg Turk Beam channels on 42E which i believe are still using old Tandberg Version and Arena Sport BulgariaSat (1.9°E)
other than that i am not aware of any other working KU Tandberg Channels that are working .
Vplug shoud work ok with Tandberg V1.
Check monitor for keys in use,and that are valid keys for that channel.
Make sure Vplug is the only emulator running,sometimes other emulators interfere.