User blog comment:Mobo85/Phineas and Ferb's Third Time To Charm at Comic-Con San Diego/@comment-406459-20100711184002

It would technically be considered copyright infringment to reproduce and redistribute copyrighted material without permission, which is exactly why Comic-Con doesn't allow it: I've seen a couple of videos online that people recorded of panels at Comic-Con (including last year's Phineas and Ferb panel), and the uploaders commented that they were allowed to record the panel itself, but not any filmed footage shown during the panels for exactly that reason. Let's not turn this into a legal debate.