Rear Composite Input
The input on the back of your television that takes a composite input.

Rear S-Video Input
The input on the back of your television that takes an S-Video input.

Receiver
This is the same thing as a Set-Top-Box or a Decoder, which is used to get and decode your high definition signals.

Refresh Rate
This is the rate at which the television / monitor refreshes the picture.

Refurbished
If this product was initially shipped out and returned, most manufacturers will ‘Refurbish’ the product, which is essentially fixing any problems and making the product like new again. Although this is not specifically a new product, it often comes at a very good price and the warranty you will get is usually exactly the same as a new product would be.

Resolution
Resolution is described by the number of pixels that are on a display monitor. (aka the individual points of color) When you see a resolution of 640 x 480, the first number always represents the number of pixels on the horizontal axis, with the second number representing the number of pixels on the vertical axis. The clarity of the image is in direct correlation to the resolution vs. the size of the display. Thus, if you have a high resolution on a small monitor, then you have a very sharp picture.

Response Time
Many displays such as LCDs have different response times. The less the response time the faster your display can switch the current pixels from one color to the next. Slower response times will display moving video much better and in greater detail than screens with higher response times. High response times usually create video delay.

Reverse 3:2 Pulldown
Because some DVDs and transmissions are packaged as progressive scan only, Reverse 3:2 Pulldown is needed to convert these signals back to regular NTSC television signals. If you don’t have a television that is capable of displaying a progressive signal, Reverse 3:2 Pulldown will convert these signals back to a format that is viewable on your display device.

RGB
RGB stands for Red, Green, Blue and is a way of transmitting signals in three separate channels - each one dedicated to each of the colors. RGB is the opposite of 'Composite Video' because composite video combines each of the signals during transmission.