Google is working on a "4K wireless TV box" according to a filing with the Federal Communications Commission (FCC) in the US. The FCC is the trade body that regulates and approves devices like these.
According to the filing, the device will be equipped for wireless streaming, just like Google Chromecast dongles. It will have 5GHz and 2.5GHz band wi-fi connectivity, and Bluetooth 4.1 for streaming from phones and tablets.
It also includes photos and even a user manual, which suggests this thing is almost ready to go on sale.
The confidentiality rules expire in August, so look out for a launch then.
While Google's Chromecast dongles have flown off the shelves, mostly thanks to their low prices, Google has a rather chequered track history when it comes to TV. Its Google TV platform stalled, and was replaced by Android TV, but that platform has still struggled. It also launched the Nexus Q in 2013, a black orb that streamed YouTube videos to your telly, but that sank without trace.
Apple is also rumoured to be working on a 4K version of its Apple TV streaming box. Like Google's forthcoming box, it's thought to have HDR tech onboard, which should make for much more vivid colours and a more lifelike image.