This post is old, but i felt i had to share. I have a Galaxy S4 Mini. I am a freshman at my school and there are tvs and projectors everywhere. I have been trolling everyone with this. There is a projector in the cafeteria and i have turned it on and projected giant blue screens on the wall. Everyone is always like "What's that?" Or "Who did that?". It is funny as hell and I do this all the time. I am even creating a mini club in the school for everyone with a phone with the ir blaster (s4, s5, s6, note 3, etc...) so we can mess with the entire school. I specifically moved to the s4 mini from the iphone 4 because my dad got the s5 and showed me the cool trick. Just thought I would share...