@Lindajww56
There is no TCN channel/app yet, but it is currently in development. You can find this info in the TCN FAQ's page https://tuckercarlson.com/faq
This same page also mentions that you can cast to these streaming devices in the meantime.
If you have a laptop with an HDMI port, you can also load TCN in browser and then connect the HDMI cable to your TV. (Bypass Roku and use your TV in an extended monitor mode).
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