This might seem like a simple question, as you probably will think now that I can just plug in my Mac with a HDMI or VGA cable. But this isn't easy as you could think, as this is my teacher's TV, and she uses it to connect her PC to mirror the stuff she's doing on her PC (for easier teaching purposes ) Anyway, I have to find a way how to mess up her connection to the TV, and at the same time, connect my Mac to the TV to mirror what I'm doing. What I mean by this is that I want a way to enable her connection to the TV, and at the same time, enable mine, so that when I finish my presentation, I can just take out my MBP and allow my teacher to continue to mirror her lessons with the TV. I'm presentating a Keynote presentation, and I do want to convert the Keynote file into Quicktime so that it would be much easier, but I have some videos in it, and the videos play automatically in the Quicktime video, and I can't pause the video, so I have a problem with that. So if you can find 1 one the 2 solutions for the 2 problems (1. How to connect my MBP along with my teacher's connection running fine 2: How to able to play and pause videos in a Keynote presentation in a Quicktime version.) You may not understand what I'm saying, and I'm sorry, but please try your best to understand and give me a solution. Hope you can find the solution quickly!