The Premiere is not voice active. There is no microphone on the remote.
Yes, there is free YouTube and pay for Youtube.
No Registration fee, but there could be fees for the services - Like if you get discovery through Roku, it is $6 per month. I have mine to act an Infinity box so it is eliminating fees for me.
There are no subscription fees to use the Roku Premiere. The only subscription fees are for channels that require one like Netflix, Disney +, Amazon Prime, etc.
Spectrum TV is for mobile devices such as cell phones.
Has a volume control
It can be added as a free channel. 1. Using your Roku remote, press the Home button. 2. Scroll to "Streaming Channels" and then press "OK." 3. Scroll to "Search Channels" and press "OK." 4. Type "Disney." When you see Disney Plus appear in the list on the right, select it. 5. Select "Add channel." If required, enter your Roku PIN to install it. 6. Press the Home button. Find Disney Plus in your channel list and start the channel.
Yes. Right on the remote
All Roku streaming players, including the Roku Streaming Stick®, Roku Streaming Stick+, and Roku Smart Soundbar, will work with any television with an HDMI connection.