Here’s a prediction: Plex will never, on its own, supply a live TV viewing function. It will concentrate on what it does best - backend server. In any case, MediaPortal is a better option for live TV viewing and multiple tuner support. You can forget about Plex being a competitor to Tablo for live viewing EVER.
As usual there is an initial rush of optimism about a product and then reality sets in about it’s true functionality and directions. And of course this “optimism” is always is pitted against what Tablo does or does not do with promises of “abandoning ship” “as soon as” X function arrives and apocalyptic notions of Tablo’s future.
We’ll see if some of these “prophets” are still around next year using their Tablos…LOL