simulating TV screen or transparency on lightbox


I am new to Blender.

I need to create an image in a scene that requires no external illumination, in other words, an object that is self-illuminated, something like a TV image or colour transparency placed on a lightbox.

I’ve not been able to work out how to do this - Any tips please?

I’m using Blender 2.63



you could import the desired image as plane (activate addon under user preferences) and use the emit value in the settings of the planes material.

Thanks Henry - much simpler than the things i’ve been trying!