You may get content via an over the antenna, or the user is in a facility.
Keep in mind that some cable boxes are installed behind the TV, against the wall or in a corner, so before you assume a TV only setup, look at the back of the TV and trace the input to the box if any.
If no box:
V9's default is Dual Mode to work both a TV and STB.
To work TV Only:
1) Press and hold TV till light solid, then 970
2) Set TV: try the preset code. IF not, then: press and hold TV till light solid, then enter code for your device;
3) Lock: press and hold TV till light solid, then 955
V8 and below default is Dual Mode.
1) Set TV: Press and release TV, light flashes once - Try the preset code;
a) If not working, then: press and hold TV till light solid, then enter code for your brand TV;
2) Lock: press and hold TV till light solid, then 955