No connection My Cloud Home to TV Panasonic TX-L47ETW5

Hello to you all,
some days ago I bought WD My Cloud Home. I activated “Plex” and wanted to download Mediaserver Plex for the home cloud. There was no package for it. So it is not possible to stream films from My Cloud Home to my TV.
Did I do something wrong, or is there an other possibility- or is it definitely not possible to stream to TV? I had the recommodation from my friend. He had an older version, My Cloud, there it is it possible.
Thank you for answering.