BTW, with a PIC18 output to TV can be done really easily if you don't mind B/W display. One PIC chip, two resistors, a crystal and a phono socket (+5v supply as well) gives you everything you need AKA ZX81 style - 32x25 character display (40x25 possible) (256x200 or 320x200 pixel) with user-defineable characters for graphics, all interrupt driven so all you have to to is write your game and use your imagination - the display takes care of itself. Have written all the code a couple of years back and have some photos of it running on a dev board somewhere.... On top of that, for a game, you could simply "parallel" the PICs to generate RGB output - again something I played with. I also built an "intelligent" graphics controller with three PIC18's paralleled, which provided an 8 bit parallel interface to the external world, whilst providing 512x200 resolution mono display, with built in line and circle drawing algorithms (utilising limited UDG's). Wrote a "Snake" game on it which the kids loved!