Old timer here who is not a techie needs help gett

Old timer here who is not a techie needs help getting UltraFlix app on my 55 curved Samsung 4K TV. I was hoping the TV would automatically update now that the app is on all the new TV's but so far that has not happened. Using the search feature I can get to UltraFlix but am unable to see much that is offered and I know lots of movies have been downloaded. I can't find any search feature either. Understand I am not saying its not there I am saying I need help finding everything and installing same. I did register with UltraFlix but did that using my computer. If someone has been through this process and would be willing to pm me the step by step instructions that would be awesome. I may need one of my grandchildren to help. Don't laugh one day you too will be an old timer. Go NTEK!!!