For more information about that channel's features and functionality, you'll want to contact Spectrum support directly to inquire further. Many channels on Roku are developed and maintained by the channel provider themselves.
open spectrum app. Click top left arrow at very top of remote which takes you to page with Live TV, Guide etc. Look at bottom left of this page for menu icon. Click down arrow once to hilite icon. Click on it it and click on icon. This will bring up Preferences, Support, etc menu. Go to Manage Startup channel and set channel you wish to start up with Srartup on or click Startup off.