I want to hook my year old macbook pro to my tv what cord do i need

Your question as been asked & answered hundreds of times. Do a forum search for instructions as well as search knowledge base and User Tips.

User Tip: Can you connect Macs to TVs?

First determine exactly which MacBook Pro model you have by entering the serial number on this page:

Mac Basics: Ports and connectors on your Mac - Apple Support

For recent retina MacBook Pro models, the simplest and least-expensive option is a standard HDMI cable of the desired length because the computer contains a standard HDMI out port on the operator's right.