Hi @rjcourtney,
Greetings and welcome to the Roku Community.
Thanks for sharing your inquiry here with us. For the time being, since the Roku platform offers a vast range of streaming platforms, there isn't a direct opening of the Live channels. The only way to access Live TV Channel Guide is directly from The Roku Channel, or from the convenient Live TV app on the home screen of your TV.
We hope for your understanding regarding this matter.
All the best,
Kash
Takashi O.
Roku Community Moderator