@Brae44
Unfortunately, you need a working physical Roku remote to complete setup/activation of a Roku device or RokuTV when it is new or has been Factory Reset.
You can buy a cheap universal streaming remote that is compatible with RokuTV from Walmart, Target, Best Buy etc. if you need to get up and running quickly. (some of the universal remotes are compatible with "rokutv" and others are compatible with "roku players". You will need one compatible with RokuTV).
Otherwise, you can order a replacement Roku remote from the Roku website. You can order either an IR one for your RokuTV or upgrade to one of the Voice Remotes.
https://www.roku.com/products/accessories/roku-tv-remote
https://www.roku.com/products/accessories
Roku Community Streaming Expert
Just another Roku user... I am not a Roku employee.
Insignia RokuTV, Ultra 4660, Premiere+ 3921, Express 4k+ 3941, Streambar 9102