Quick Summary
Netflix has removed the ability to cast shows and movies from a mobile device to most TVs and streaming devices.
The exception is when using an older Chromecast device that doesn't have its own remote, but you will need a non-ad supported plan.
When Google released the Chromecast back in 2013, it was excellent for making an older TV much smarter. Being able to "cast" whatever was on your mobile phone was great for watching things like Netflix without having to upgrade to a new fancy TV that had streaming apps built in.
