Apple TV: Connect to multiple Home Sharings Is it possible to connect one Apple TV to multiple iTunes Home Sharings?

I have two Macs that are connected to different Apple IDs, and I want to access both of them via the Apple TVs Computers section. The problem is that I can enter only one Apple ID for Home Sharing on the Apple TV.

How do I connect to the second iTunes library without losing the connection to the first one?
It is not currently possible to set up Home Sharing with multiple Apple IDs on an Apple TV. As far as I can tell there is no way to share an iTunes library with Apple TV without setting up Home Sharing.