How to play an animation on a mesh? I have a pre-rendered animation that I want to play on a TV model in my new scene animation, and I really don't know how. 

Would I do it within Blender, or should I make the material on the TV screen green, so I can green-screen it on?
Blender Internal:


Add a new texture and set the type to image or movie.
Select a file, then set the source to either Sequence or Movie depending on the format your rendered animation is in. (e.g. Sequence for an image sequence, or Movie for a single video file.)


Cycles:


Add a new Image Texture node and open a file.
Set the Source (this option will appear after you select a file) to either Sequence or Movie, again depending on the format your rendered animation is in.