Roku TV's are sold by their respective manufacturers, not by Roku. Roku just supplies them with the operating system they use which includes the built-in Roku functions.
Here's a Roku page listing the brands of Roku TVs: https://support.roku.com/article/115006651948
Walmart also has their own version under the Onn brand.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X