What audio / video formats can the Tivo app support for direct streaming of MKVs (ie no transcoding)?
It can’t do mkv so they at a minimum will need to be remuxed. This contains the general info for the smart tv app format support and if you scroll down the specific difference for TiVo
https://support.plex.tv/hc/en-us/articles/203810286-What-media-formats-are-supported-
Technically, a Tivo can support an MKV if it’s just a container around streams it know how to decode. As in, a straight rip from a DVD transfers and plays without transcoding on a Tivo Roamio. So yes, that’s remuxing, but that’s when using something like pyTivo, which transfers the file to the Tivo (not streaming).
