Here's image of really big display with LCDSmartie This is done this way: PC -> usb/uart bridge -> Tellymate board -> Pioneer AVIC-DR2000 monitor.
Generally. Tellymate produces standart CVBS, PAL or NTSC timings. This way I can even use my grandma's TV for it
Bad side of this method: no dynamically updated info, no progressbars. All the "screens" contains it's own position codes, and 1 sec of showing time -except the last one shows for a 10 sec (to have time to read info). It's possible to show progressbars, but there's should be less information at once.