Yes. You can watch content from your channels using the GO Apps. These apps are free for Videotron TV customers who subscribe to certain channels.
To watch content from a channel you subscribe to, you must log in to the channel’s app using your Customer Centre login information or your Helix account information.
Note that it may take up to 24 hours after you’ve subscribed to or reactivated a channel for your access to the app to become active. App-related issues (audio/video, accessibility, availability, etc.) must be reported to the TV channel providers.