Is there a way to get google calendar "video" info from invites into Apple Calendar?
Solution 1:
This question was asked on StackOverflow, and one answer provides a script to grab this information and populate it in Calendar. You'll find the script at Yeraze/CalendarHangout and a brief description of the solution here.
Solution 2:
Calendar doesn't have a way for showing that.
If there's some reason that you wouldn't just open your Google calendar to get that information, I think that you could drag the calendar event out of Calendar and onto your desktop. It will create an .ics file, which is a text file. You could then open it in TextEdit and look for the video field. Calendar should preserve everything in the .ics file even if it doesn't actually show all of its contents, including nonstandard fields like "video".