qwrwed/plasmascreen — pull request #1 by VanessaE (2013-07-28 10:32:54+00:00)
Title: Provide a "flipping through channels" look via animated textures

Title almost says it all :-)

There is one caveat: Since the TV is 3x2 nodes in size, animation glitches are possible (if somewhat unlikely) if a TV is placed such that it overlaps the boundary between two or more mapblocks.

If that happens, each mapblock will probably display its part of the TV at a different offset in the animation. I believe there is a minetest.conf setting (for the client) that will force the animations to stay in sync, preventing this issue, but I am led to understand it comes with a performance penalty.