Let's get a little more info/clarification.
What Roku device are you using? Model number is always helpful.
Does your TV have multiple HDMI inputs? Are you certain you have the TV input set to the HDMI input the Roku is using?
Are you using the included power supply to power the Roku? This generally is meaningful if you're using a Stick.
You say you can't get to the Home screen on your Roku. What does show? If you were to unplug the power from your Roku, what happens when you plug it back? Assume nothing. Describe what happens.
DBDukes
Roku Community Streaming Expert
Note: I am not a Roku employee.
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