TVout is a completely interrupt driven library that will output either NTSC or PAL composite.
Connect an RCA plug to the Arduino according to the following schematic. A 75 ohm resistor may be needed between VID and GND on the RCA plug for a very small subset of TVs
SYNC is on OCR1A and AUDIO is on OCR2A
*There are some timing issues with the ATmega1284p, may be related to Sanguino core.
**Support for the Arduino Leonardo has just recently been added.