AFAIK, you can’t access Crave with your PikTV credentials, it is a selectable premium channel, needing no credentials. You can install the Crave App from the PlayStore, and use Bell’s Crave credentials.
I have been using a Samsung Galaxy S7, with PIK TV App, and then Smart View to my Samsung TV. From inside PIK TV I am able to search for "Star Trek", find Star Trek: Discovery (From Crave) and stream it quite successfully. I don't think the interface is overly elegant, but so far it and streaming TV have been working well for me.