I’m not familiar with the Roku but it seems unlikely that it has a keyboard-like function.
So, assuming you are on YouTube via the Roku, how do you do a search for “Sarah Brightman Time to Say Goodbye”? On a chromecast that would take a few seconds. How about on a Roku?
TV time, anytime
When you need to keep the volume down but still get your TV fix, Roku 3 features an enhanced remote with built-in headphone jack. Just plug in the included in-ear headphones to enter your own private listening world. It’s perfect for cranking up that late-night action movie without waking the spouse. Or kids. Or dog.