There are several graphics LCD types commonly used with PIC, both monochrome and color. They have internal controllers, so you write a memory location and forget it, it doesn't scan out lines and provide a video signal.
There's at least one hardware solution to do simple text overlay on a video signal, the PIC can write to the hardware.
There have been a handful of projects which do generate a crude video signal with a PIC. They're fundamentally crude because the PIC hardly has enough memory to hold a page of video, and the speed required to flawlessly generate video is quite high.