I understand where you coming from, I thought the same too but his Hisense Television is one that has Hisense’s very own proprietary operating system called VIDAA OS.
I looked up the RokuTV version of the same model and that Hisense model should direct play x265 hevc with no issues at all.
I too had the same thought about it converting because only x264 was supported, but unless it can be confirmed otherwise, I am certain that x265 can be/should be supported as well. It’s not that old of a TV.
Update Announcements can be found here: Plex for VIDAA (Hisense televisions) - #58 by markus101
