As of May 16th, 2019 BrightTALK Webinars can easily be tracked in HubSpot using the "Activity Message" field.
This field should be created in your HubSpot instance as a "single-line text" field and then mapped in your BrightTALK Demand Central Account.
This field passes the following values:
-Registered for [Name of your Webinar]
-Viewed [Name of your Webinar] Live
-Viewed [Name of your Webinar] On-Demand
You can then report on BrightTALK webinars at any time using an Active List and the "has ever contained" parameter:
Note: HubSpot Active Lists do not always update in real time. Please wait at least 3-5 minutes after creating the List before confirming that it has captured the right number of contacts (you may need to refresh your screen).