Awhile ago I created a 3d scene to use in a contest for Rat Entertainment. I ended up submitting a different version in the contest, but I still liked this version and hated to see it just go to waste. I just reworked it to render in cycles. I did all the modeling / texturing except for the mouse character which I used from Blend Swap with permission from the artist. The original animation had the video screen actually playing a moving video, but at this stage, I don’t think this is possible…I sure hope they add the ability to use a movie file as a texture soon.
For moving screens etc you might wanna consider using Adobe After Effects