Any one after an Apple TV3 before I trade me it?

Nothing wrong with it, I just replaced it with an Apple TV 4.  I don't believe you can buy these any more.  

Until recently I had plex running on it (https://github.com/iBaa/PlexConnect ) so I had access to all my local media (and live tv via my Plex channel).  But recent plex server changes may have stopped that unless they've fixed it in the meantime.

Otherwise airplay is a pretty decent solution.

Looking for $50.  I'm based in Wellington