@Anonymous User The NowTV box does 50Hz as does the Roku Streaming Stick+ as they are basically identical except in physical form.
My concern would be your tv not accepting the 50Hz signal from the box if it's incapable of doing it from the stick. I guess it will be a case of 'buy it and see'. I'm at a total loss as to why your tv isn't auto adjusting to 50Hz and would still tend to believe it's a fault with the tv. I'm not sure if you've said so already but have you been onto the LG UK website to see if maybe there's a firmware upgrade for your particular set, or contacted LG Support to see if they can get to the bottom of the auto refresh issue with your tv?
My Roku outputs a much more vibrant iplayer picture than that of my TVs built in iplayer app, Youview box etc. It also beats the NowTV branded devices for NowTV output.
If you can do your picture settings independently for each of your HDMI inputs I would experiment with turning Smooth Motion on at a low setting to begin with. Although the 'general' advice is to leave such settings off there are times when it is needed, so may be an option to try, especially as your tv is producing judderring pictures from your Roku (although again that could just be your tv not adjusting frame rate properly). When I view Sports content from NowTV which is only output at 25fps I have to turn my smooth motion setting to a mid position to allow for the inferior frame rate Sky utilises for sport content on NowTV.
I'm at a loss as to how to assist you any further on this, and I'm not back online until tomorrow, but please let us know how you get on, and maybe someone else will pop along later with the solution you need. It's not something I've seen before with the Stick+ and asking around a few mates last night who also have the Stick+ they also say they are baffled as to why you are getting the results (or lack of) that you're getting with your set up.
Good luck, and I hope this all works out for you as it is a shame you're not getting the same enjoyment from your Stick+ as the rest of us.
