A quick way to get the Tenant Id for your Office 365 / Azure AD tenant is to login to the Azure AD Portal, drill down to the directory and copy the ID from the URL.
Love the Tubecast Windows Phone app which lets me cast to any device in the house.
The How to install and configure Azure PowerShell MSDN article only provides a link to the Web Platform installer to download and install the Azure PowerShell module. This is a problem when you need to install on a locked down server which doesn’t have access to the wider internet.
Fortunately the standalone installer is available on GitHub at https://github.com/Azure/azure-sdk-tools/releases