Roku is certainly on its last legs, whilst other innovate and keep up, Roku is still peddling old hardware that is at least three generations behind.
In the USA they have had:
Roku 3 with voice search, replaced the old Roku 3 with no voice search still sold as the top model in the UK
Roku 4, this bought 4K streaming, despite 4K TVs being on sale for quite some time, Roku are still selling old stock Purple roku Stick, Roku 2 and Roku 3 and none of it supports 4K streaming
New Black Roku stick with 'faster processor' - Roku UK are still pushing the purple stick, which lags beyond belief and due to the severe lag can be unusable at times as you wait an eternity for apps/channels to load The Purple Roku stick is in direct competition to Amazons Fire TV stick with Alexa which is being heavily plugged by amazon, with advertising online, in print, in the media and everywhere else, as for Roku? er, whats that again?
Roku Express/Express+, premier, etc not a chance, its Roku stick, 2, 3 or nothing.
If you are reading this and you are in the UK, and thinking of buying a Roku device (stick/2/3) Do not buy, avoid Roku and purchase Amazons Fire TV. There is every chance that as time goes on certain Key apps/channels will stop working on old hardware, just as they do with Smart TVs, long term access to key apps such as BBC IPlayer can not be guaranteed, this has already happened to some set top boxes and smart TV's that supported Iplayer and no longer have access.
Other than dumping old hardware on the UK, Roku no longer appears to support the UK market.
Roku UKs facebook page has been cleansed of any visitor posts and roku makes no comments on its support/commitment to the UK market
[size=150][size=100]Until Roku offers any clarity on whats happening - avoid rokus in the UK and buy another device such as amazons Fire TV[/size][/size]
As for what has happened, a similar thing happened to Tivo in the UK, when it launched it was an innovative DVR, however Tivo had an agreement with Sky.
Sky had a competitor device, Sky + so that was pretty much it for Tivo.
I get the feeling a similar thing is happening again, this time with Sky/Now Tv and Roku.
Roku has been pretty much left in the dust with the likes of Chromecast, Now TV, amazons Fire TV, and Kodi taking over which is a shame as Roku once made some great products.