Most likely you have troubles with connecting the TV Box and the TV. Do the following:
1. Check the connection between the box and the TV. Check if the cord is plugged in properly.
2. Check which TV input are you using with the TV Box (for HDMI cables – its HDMI1, HDMI2, HDMI3, HDMI4, etc. For Composite cables – Video 1, Video 2 or AV1/AV2).
3. Press ‘INPUT’ button (‘SOURCE’ ‘TV/VIDEO’) on TV remote. You will see the INPUT menu, where you need to choose the correct type of connection, used to connect your TV Box and TV.