@Scudderbug0222 No. You can add additional TVs and Roku devices to the same account. There is no additional charge. I currently have six Roku devices or TVs linked to my account. Keep in mind that all devices linked to the same account will have the same channels on the home screen. The order of the channels can be changed but deleting a channel from one device will remove it from all devices. You may have to login to some channels (apps) separately on each device.
It’s very easy but be warned to make certain all devices linked to Roku acct before adding any channels. Having issue with double charges & no subscription showing but ROKU sure had my credit card number