Play next has been populated with a single YouTube video of Zendaya for 3 months now. I have no intention of watching, I can't remove it either. I am UK based and have lots of terrestrial apps that could fill this section of the screen. Currently the only way to get recommendations from these apps is to go into the youview guide and look that way. Any way to make this 'play next' function useful? I have gone into settings and checked all available sources are enabled, cleared cache data for everything and still Zendaya haunts my screen.
This may be a stupid question.....but did you try long-pressing on Zendaya @ play next to pull up the context menu with option to remove? As for making Play Next more useful, you can only add stuff from apps that support play next.