https://www.tsn.ca/2018-19-figure-skating-schedule-on-tsn-ctv-1.631528
https://skatecanada.ca/2018-skate-canada-international/ will give you the RDS scheduled and the practice streaming scheduled
as for the Canadian stream on TSN It is usually on their website and from what I understand GEO blocked.
Outside of Canada you can probably watch it on the isu.org skating channel but in Canada I think CTV/TSN own the rights so it is not on CBC.
I'm am on my way home, but I have a layover in Canada!