I am looking to make a home-made pong console. I'll probably be using either an AVR or PIC(maybe an Arduino if i don't feel like making a board completely from scratch), but that's not my problem. My main obstacle is that i don't know anything about working with audio/video output(because i'd be plugging it into a tv) Any advice on where I could read up and get familiar for working with audio/video output? I was thinking I would use TRS output(as opposed to HDMI or something, because that seems a little overkill for pong), but I don't really know a lot.

 

You can make a pong game from scratch without using a micro.
All you would need are some 555 timers, counters and monostables.

Now that I think about it, you can use an MCU to create a TV sync generator and the rest can be done with monostables.
Would make a fun project but my plate is pretty full right now.