in my normal console:

PPmarcel@serveur:~$ tmsnc 
Starting TMSNC
Version: 0.3.2
Process ID: 3828
Terminal emulation: xterm
iconv: Character encoding translation not possible

in screen:

PPmarcel@serveur:~$ tmsnc
Starting TMSNC
Version: 0.3.2
Process ID: 3827
Terminal emulation: screen
iconv: Character encoding translation not possible