SO SIMPLE AN APPLE COULD DO IT!
Now, it might not be the done thing to quote Wikipedia in a proper magazine that gets printed on paper and everything, but this paragraph explaining how the Apple II could do colour is just too amazing not to celebrate: The Apple II display provides two pixels per subcarrier cycle. When the colour burst reference signal is turned on and the computer attached to a colour display, it can display green by showing one alternating pattern of pixels, magenta with an opposite pattern of alternating pixels, and white by placing two pixels next to each other. Blue and orange are available by tweaking the offset of the pixels by half a pixel-width in relation to the colour-burst signal. The highresolution display offers more colours by compressing more (and narrower) pixels into each subcarrier cycle.