Each login can be used on multiple devices, but you will only be able to stream on one device at a time. If you have purchased more than one connection, you will be able to watch streams on more than one device at the same time. Each account allows the ability to purchase up to 5 connections.
For example: If you purchase the 5 connection plan, any 5 devices can access Live TV at the same time. Keep in mind a sixth device will not be able to connect until one of the others has logged out.
This plan is good for a family or group of friends who want to share an account and is the most economical.