I was able to setup an account on one tv but when I tried to set up on a second tv I received the following error message: We detected the email you are trying to activate did not match the one in your account. Please try again.
On the working Roku go to Roku menu path Settings / System / About. The email address shown there is the email address associated with the account.
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