I have just setup my new Apple TV (3rd Gen).
I followed all instructions, have my one and only Apple ID on both my home PC and Apple TV.
Home Sharing has been turned on both devices as well.
The icon shows up on iTunes after I typed in my apple id and password, but after I click Done it disappears.
What can I do?
In your itunes on the PC, Apple TV 3rd gen does not show up ever this is normal as Apple TV3 does not store any content you can access from the PC
On your Apple TV to see your PC library, Select Computers from the front screen and it should show your pc library.
Setting up Apple TV for HomeSharing
Retrieving data ...