At this time there isn't discrete command for You Tube tv, sorry. The Roku Ultra remotes have two programmable keys 1 & 2 that can hold a voice search, like YTTV. It won't change directly like the netflix key, it will announce it is changing and there's 5 countdown until it does change. If you had UEI made universal like Inteset 422-3 or One-For-All urc-7880 they would give you access to three progammable keys call them 1,2, & 3. Initially you would still need a voice remote with microphone key, it doesn't have to be Ultra remote, any voice remote would do. Once you have these keys on your UEI remote you could teach them to any universal remote with learning feature. It is thr roku itself that memorizes the voice searches, the 1,2,& 3 commands just recalls them.
If its Roku tv, the answer would be no. If its a roku attached to non-roku tv, and it would still play and use up bandwidth. Thats why you should always go back to the home screen.
Edmund
