I have read somewhere that you can disable the Tuner but the there is no such option to either disable or to select another tuner/country.
Here is the log:
19:25:50.640| 9852|I| main| 157|* Board name : Maru
19:25:50.641| 9852|I| main| 158|* Package Version: 2.9.6
19:25:50.641| 9852|I| main| 159|* Package Maintainer: SeokYeon Hwang <syeon.hwang@samsung.com>
19:25:50.641| 9852|I| main| 160|* Git Head :
19:25:50.641| 9852|I| main| 161|*
19:25:50.644| 9852|I| main| 162|* User name : Amir
19:25:50.644| 9852|I| main| 163|* Host name : DESKTOP-U2G70Q3
19:25:50.644| 9852|I| main| 166|* Build date : 2017-12-05 23:15:14 EST
19:25:50.644| 9852|I| main| 175|* Current time : 2018-06-02 19:25:50
19:25:50.644| 9852|I| main| 179|* Host Qt version : 5.6.0
19:25:50.644| 9852|I| main| 195|* Host SDL version : 2.0.4
19:25:50.644| 9852|I| osutil| 165|* Windows
19:25:50.644| 9852|I| osutil| 166|* LibPNG Version : 1.6.21
19:25:50.644| 9852|I| osutil| 176|* MajorVersion : 6, MinorVersion : 2, BuildNumber : 9200, PlatformId : 2, CSDVersion :
19:25:50.644| 9852|I| osutil| 194|* Total Ram : 4193780 kB, Free: 1057188 kB
19:25:50.645| 9852|I|net_helper| 122|TCP port 26101 is aleady occupied19:25:50.645| 9852|I|net_helper| 178|Emulator base port is 26110.
19:25:50.645| 9852|I|net_helper| 709|start sdb noti server thread.
19:25:50.646| 9852|I|net_helper| 732|success to bind port[127.0.0.1:26113/udp] for sdb noti server in host
19:25:50.646| 9852|I| main| 239|kernel commandline : vm_name=T-samsung-4.0-x86 video=LVDS-1:1920x1080-32@60 dpi=72 host_ip=10.0.2.2 console=ttyS0 yagl=1 force_pat sdb_port=26110, vm_resolution=640x384
dsound: Registering endpoint notification callback succeeded.
dsound: (dsound_create_thread) Done
dsound: (dsound_audio_in_init) success
dsound: (dsound_audio_init) finished
19:25:51.405| 9852|I| vigs| 147|vigs_offscreen_server_create:147 - VIGS_SYNC_READ_PIXELS: 1
19:25:51.406| 9852|I| vigs| 536|vigs_device_init:536 - VIGS initialized
19:25:51.406| 9852|I| tuner|1483|device initializing...
19:25:51.406| 9852|I| tuner_dec|1967|device initialization.
19:25:51.406| 9852|I| tuner_dec|1968|still image directory : C:\Users\Amir\Documents\Tizen\platforms\tizen-4.0\tv-samsung\emulator-resources\images
19:25:51.406| 9852|S| tuner_dec|1985|winsys interface 'vigs_wsi' not foundC:\Users\Amir\Documents\Tizen\platforms\tizen-4.0\tv-samsung\emulator\bin\\emulator-x86_64: -device maru-virtual-tuner,system=ATSC,country=USA,table=C:\Users\Amir\Documents\tdata\emulator\vms\T-samsung-4.0-x86\tuner_default.cfg,stillimg=C:\Users\Amir\Documents\Tizen\platforms\tizen-4.0\tv-samsung\emulator-resources\images,wsi=vigs_wsi: Initialization of device maru-tuner-decoder failed: Device initialization failed
19:25:51.410| 9852|I|qt5_msgbox| 69|qt5_msgbox starts...
19:25:51.410| 9852|I|qt5_msgbox| 63|qt5_msgbox path : C:\Users\Amir\Documents\Tizen\platforms\tizen-4.0\tv-samsung\emulator\bin\qt5_msgbox
19:25:51.439| 9852|I|net_helper| 698|shutdown sdb notification server.
19:25:51.439| 9852|I| main| 91|Exit emulator...