Thank you for participating in the Slingbox Answers Forum. I understand why you have contacted us in regards to moving the Slingbox from one room to another. If you want to be able to use the Slingbox with more than one cable box, it needs to be setup on the cable box you are going to be using. If you switch then you will need to go back through the setup process. Below is a link to assist you with Setup.
Hope this Helps!
The Sling Moderation Team