[mnlbay]

Plusnet stopped offering a TV service in October 2021: www.plus.net 

TalkTalk migrated away from offering YouView based service to a new Netgem Android based setup for new customers even longer ago.

Humax used to offer a standalone solution but again haven't for a long time.

This would most certainly be the end of it as a marketed proposition.

I have the latest TalkTalk STB (Dubbed TV Hub which launched a few months after the Netgem proposition). It is a Technicolor Android STB which has a YouView app built in - this acts as the home screen and launcher for the device, as well as the tuner.  Similarly, they *could* develop a similar YouView Apple TV app for delivery of channels - or something  completely new .