I just set up new Apple TV and download software. It indicated the update time is 59 hours..... There is any other way to update?
That would be due to your network.
What is your current connection, use speedtest
Make sure DNS is set to automatic
Go to istumbler (Mac) or netstumbler (PC) and get a report of your network, it will help to see if there's interference
If on wifi try ethernet
Retrieving data ...