Congrats on the new TV! I can definitely assist you with this and get it taken care of. As I don't know what TV you have I don't have any codes off hand available.
You can check out this link: http://www.dishnetwork.com/SupportSection/remote-setup to get the codes to program your remote. I have also listed the steps below to program that remote to your new TV.
Addressing Remote to TV:
1.) Press and hold the clear TV button until all mode lights light up.
2.) Release and TV light will be blinking.
3.) Enter code and press #. The TV button should flash 3 times.
4.) Try functions (Volume, Power, etc..) and see if working.
5.) If no function, repeat steps 1-4 with another code.
If you need any additional assistance you can reach me here or at [email protected]