, I'm TV Tech1 and I'll be working with you to identify and help you resolve your problem.
They update WHEN ITV sends the updates...Samsung just delivers the standards that the providers need to meet to display on their TV sets.
So, it's ITVs software that's not working. Factory reset is what is needed to clear out OLD software and download NEW software.
To get to it, you can look in your menu and try the initialize setting. That should clear all defective downloads.
This is a known factory reset, but I'm not sure it is UK --
Let's see if that clears your bad software download, respond back afterwards.
ALSO it would help if you delivered your TV model number(s) if you don't succeed with the factory reset. I had to guess they were 2012 TV models.