Those that have an icon on my guide all have a line through them, even those accessible through the Home selection on the initial PikTV screen. Do yours appear without the line?
Does it look like what is shown on channels 119 and 121 in the screenshot below?
If so - this means that the content is restricted to in-home access only. This means that either the channel or the show can only be watched when connected to your TELUS home internet. You won't be able to watch the channel or show 'on-the-go' and you'll see a message pop up if you try to watch over LTE or another WiFi. The vast majority of channels on Pik TV can be viewed both in-home and out-of-home, but there are some exceptions. In 'The Basics' (included in all combos), this includes Omni Vancouver (BC-only), ChekTV (BC-only), YesTV (AB-only) and the Aboriginal People's Television Network (BC and AB). There are a limited number of specific shows that are only available in-home but this varies from channel to channel, is extremely rare and I've never encountered an issue.
The logos show up in the guide even if you're connected to your home internet. Are you not able to watch these channels?
When you go to Settings --> Account info within the Pik TV app, what is your 'In Home status'? Does it say 'Not connected at home' or 'Connected at home'? Have you tried turning off and on your wifi from the Android TV home screen, or rebooting the box when disconnected from wifi?
If these troubleshooting steps don't work, you may need to call 310-MYTV for troubleshooting.