As does this website, which uses a 16F84 overclocked to 12Mhz (okay, maybe not the best thing to do, but neat nonetheless) to generate a b&w NTSC/PAL video signal in simple Pong and Tetris games. Near the bottom of the Pong and Tetris articles are links to info about video signals in general. If this site has been posted before I apologize for being redundant - for some reason I hadn't noticed this thread until now! http://www.efd.lth.se/~e96rg/mc/mc.html -Tony << I hate to rain on your parade, but the line scan time is only about 65 micro seconds. The book "Programming and Customizing PICmicro(R) Microcontrollers" by Myke Predko addresses the problem quite well. John Ferrell 6241 Phillippi Rd Julian NC 27283 Phone: (336)685-9606 Dixie Competition Products NSRCA 479 AMA 4190 W8CCW "My Competition is Not My Enemy" >> -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu