I sent the Z10 back a few weeks ago, it had mytvonline2 iptv app. That app allows you to add multiple playlists but, only one is connected/live at a time. If I'm watching a channel and it isn't stable and I want to switch to the equivalent on another list , I had to go into portal select list and wait for it to load , which is just a massive nono. Tivimate has all the lists live and available in the categories panel. You just instantly switch to what ever you want to watch.
Z11. has mytvonline3 , which allows all lists to be live at once , like in tivimate. Ordered the pro , should be arriving thursday. Will post once I've tested it.