Yes, the Convex Earth video… consisting of 7 experiments..
1 Wrong conclusion (Boats and the Horizon)
3 Worthless tests (Buildings, water level by elevation, 110km Viewing)
2 Lies (Radio test and Laser across Dam reservoir)
1 No Result Shown (Laser across Lake Titticaca)
here is a short rundown..
I did not concentrate on the discussions beyond the 1 hour mark as they were claims made using the results of the above tests..