Hi all,
I am making a TV remote-controlled light switch using an Arduino Uno. I believe it is done using an infrared sensor to receive the TV remote signal, but I am not sure. Can you please correct me if I am wrong?
Thanks,
I_Got_Pi
Most likely, although there are RF remotes out there.
How to I find the kind of remote I am using for my automatic light switch?
Cover the remote with a lap throw... If it STILL works, must be RF 
You could also just look at the remote to determine if there is an IR LED used to do the beaming... Usually uncovered in the center-front of remote but may be covered with dark red plastic cover on upscale models.
There is a wealth of info on IR in the forum. Search.
Ex: http://forum.arduino.cc/index.php/topic,19771.0.html
Ray