Let's say you don't have HDMI or need to output video to a device that only accepts the older RCA video connections. With a little bit of soldering, this is very easy! On the Raspberry Pi, you will see two pins marked RCA. By attaching this to a standard RCA plug, you can output your video through this instead of (or even in addition to) the HDMI output.
If you just want to get started with HDMI, this is not a required recipe, and you can skip ahead. You will need:
A soldering iron
An RCA video connector
Connections that can be soldered from the cable to the connector
The board itself
The TV pins in the figure are the connections you can use to connect RCA video to the Raspberry Pi:
Raspberry Pi Zero RCA video
Note
"RCA Video" is technically referred to as Composite Video, and the connectors are typically yellow.
Solder wires or connectors here that will connect to the RCA video plug.