I was thinking the same thing. We're only on the 2nd game, so a TV series seems like it's either gonna be stretched very thin or just completely make stuff up. I was against them doing a film because it seems redundant, just like the Uncharted film feels redundant.
Naughty Dog are already such great story tellers with their writing, voice acting, motion capture, and cinematic experiences. There's no way a film is going to improve on what we've already gotten, and it'll be worse so because you actually get to play through it with the game rather than just watch a cheap imitation in 2 hours with live action actors that can potentially miss the mark.
But since this is a TV show, I think it has the potential to work. The Last of Us has a very interesting world with a lot to be explored, but if we're sticking with Joel and Ellie again, then I just don't see how this can co-exist with the games. Unless they use the show as an opportunity to fill the gap between 1 and 2, which I think would be the best route to take.
But regardless, I think it's too soon to be excited for this yet. I'm still waiting on the Halo TV series which was announced back in 2013 with the Xbox One and we're already jumping into next gen and still nothing. :lol: