Lpc2000

you can probably found several examples of output to a TV with a 
simple Google search, even for 8 bits mcu. it's really easier to make 
a small TV output for text screens..
if u need to display pictures it's not so simple, but a simple TV 
output is easier to make than a VGA outpout.

a pong game for MSP430 from Texas Instruments :
http://focus.ti.com/lit/an/slaa177/slaa177.pdf

a Dungeon game for Atmel ATMega32 :
http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2005/gts7
/

just did a rapid search on google, there's probably some more 
elaborate..


if you really need VGA, u should probably look at old VGA controllers 
that where used on PC cards, but could be dificult to get one..