Print to a Flat screen TV or Monitor

Hello, first time post. Currently running Arduino Mega 2560 and a 4 line LCD display , works great. Would like to find a larger display like flat screen TV that I can talk to just like the 4 line LCD display. Does anyone know of something like that?
Thanks much

There are VGA shields and boards that might be useful

google is your friend

or check

If your TV/Monitor has composite input then maybe this will do. If you looking for HDMI output then maybe using a Raspberry Pi.