As title says
Certain older YouTube apps will no longer be supported after April 2015
https://support.google.com/youtube/answer/6098135?hl=en
My Sony Bravia is affected.
Sony affected models.
http://esupport.sony.com/p/news-item.pl?news_id=487&template…
Not sure why Youtube don't want to support 3 year old TV
Anyway time to start using my boxed chromecast.
Other way around isn't it? The issue is on Sony's end — all they need to do is roll out software or firmware upgrades to older smart TV users to support the new data API's required for Youtube to run.