I have a HULU app on my 2015 Samsung Smart TV. I subscribed to HULU but ran into a buffering issue (start/stop every few seconds). HULU chat tech had me run an internet speed test which turned out ok. Then he said this was a "known issue", with no solution. So I switched to VUDU and had the same issue. Is Roku the solution to this problem?
Hard to say what the problem is, since this isn't a Samsung forum. If the buffering is due to a network issue, it's unlikely a Roku would be any different.
There certainly could be a networking issue specific to the TV, in which case a Roku would likely work fine. I have several Samsung Smart TVs, and I don't use the apps on any of them. They all have either a Roku or Nvidia Shield attached for streaming purposes.
Dan Roku Stick (3600), Ultra (4640), Ultra (4670), Premiere (3920), Insignia 720p Roku TV, Sharp 4K Roku TV, Nvidia Shield, Windows 10 Pro x64 running Serviio and Plex on a wired Gigabit network.