Hi Ernie1,
A warm welcome here in the Roku Community, and thanks for getting in touch.
A few things to take note of If you're subscribed directly to Roku, you'll only see options available based on the picture you've provided. In order for you to remove the channel, you must first manage your subscription here at my.roku.com and also need to deactivate the auto-renewal feature. Once you've proceeded, go back to the channel and then press the * option, and you'll be able to see the Remove option.
Let us know if this works for you. Thanks!
Regards,
Rey