Got a TV with no HDMI input, but still want to hack your Raspberry Pi? Don't worry! The Raspberry Pi Model B+/2/3 come equipped with a neat 4-Way Composite Video/Audio Jack, and we've got just the cable for you!
Plug this cable into your Raspberry Pi's composite 3.5mm Jack, and your Pi will output Video (1-line) and Audio (2-lines) via the three RCA connectors.
On first startup (when installing an OS via the NOOBs distribution), hold 3 at boot for PAL, or 4 at boot for NTSC. This will force output via composite insted of HDMI .
If you have installed an operating system with an HDMI cable, and want to change to composite hold SHIFT+3 at boot for PAL, or SHIFT+4 at boot for NTSC