I'm not sure what they need a video for. What fare inspectors can see and do is check that you've paid your fare, and when/where/how you paid it, and view other information on your card. What they look for with students and seniors has long been available at
http://www.ttc.ca/Fares_and_passes/Fare_information/Seniors_students_and_children/index.jsp - seniors need to carry valid Photo ID with proof that they're 65 years of age or older, students 13-15 don't need ID, and students 16-19 need to carry EITHER valid photo ID with proof of age OR a high school student ID.