Without the model of your Roku and TV we can't give you an exact answer.
Your receiver only has analog audio inputs.
If the Roku or TV has analog audio or headphone outputs then use them.
If the TV only has optical audio output then you will need an optical to analog converter.
Without the model of your Roku and TV we can't give you an exact answer.
Your receiver only has analog audio inputs.
If the Roku or TV has analog audio or headphone outputs then use them.
If the TV only has optical audio output then you will need an optical to analog converter.