Mark writes in with another Arduino project! It’s Arduino Tuesday! –
Rather than driving a video display, I took the Arduino in the opposite direction, driving the SparkFun RGB LED Matrix Backpack. This is paired with a Python program (running on a rather more powerful computer) which is downsampling video files and sending them to the Arduino for display. The Arduino is driving this very lo-fi monitor. (The IT Crowd looks great on it!)
Arduino LDTV – Link.