First make sure the STB (Entone or Amino box) is powered on, showing a solid blue light. If the STB is on, make sure that the TV is on the proper input or source that the STB cable is connected to. If you follow the cable going from the STB to the TV and find that the TV is set to the wrong input, you can change this by going to your TV’s remote and pressing the input or source button and selecting the input that the STB Box is plugged into.