The Core

Miracast is a killer feature poised to wipe out other video streaming standards in a very fragmented Android market.

Acting like a wireless HDMI cable, Miracast mirrors your Android device onto your TV screen in high definition and with audio. Once Miracast is enabled, everything -- from the general interface, to apps and videos -- is duplicated on the big screen without the burden of a cable connecting the two devices.

http://www.cnet.com/how-to/miracast-everything-to-know-about-mirroring-android/

This is semi-disruptive, imo, particularly for broadcast media channels that want a paygate for streaming.

I've had a Miracast dongle for over a year

Kindle Fire HD + Miracast + TV = awesome

For us, the big thing is that we don't have anything close to enough bandwidth to stream video at home (two HD movies would be more than *all* our monthly bandwidth), but if you have a Kindle, Amazon lets you download free movies on Prime and watch them later. So when we're in range of better internet, we grab a bunch of stuff and then get home and mirror the Kindle to the TV and watch.

Sometimes you have to reboot one or the other to get the connection to work, but generally works pretty well.

Gated.

Prime Instant Video downloads
Exclusive to Fire devices, Prime members can download over half of our collection of Prime Instant Video movies and TV shows. Watch downloaded videos anywhere—on a plane, on vacation, in the car, or wherever you don't have a wireless connection. Prime Instant Video is the only U.S. online video subscription streaming service that offers offline viewing, included at no additional cost.

>airtame

looks promising, but reviews to date indicate it's still beta-ish

http://www.amazon.com/Airtame-Wireless-HDMI-Adapter-Enterprises/product-reviews/B00STKJB8K/ref=cm_cr_dp_see_all_btm?ie=UTF8&showViewpoints=1&sortBy=bySubmissionDateDescending