Don't fret! You can change it.
You go to do the following steps we found on Spectrum's official site.
Update: So the guide lied and we figured it out. We've updated what to do.
To change your power-on channel
- On your remote, press Menu.
- Go to Settings.
- On the bottom menu go right or left until you find Display.
- On Display go to Power On Channel.
- Highlight a particular channel or Last Channel (last viewed) and press the Select/ok button.