I am thinking about upgrading form the apple tv 2 to the apple tv 3. Will I have to re-activate all my apps that i have already authenticated?

I am thinking about upgrading form the apple tv 2 to the apple tv 3. Will I have to re-activate all my apps that i have already authenticated?

I is a bit time consuming when you set up all the apps for with your accounts. Will I have to go through this all over again with the latest version of PTV3?

Thanks in advance for you help...