After many years without a TV I want to buy one. It will be used exclusively for mirroring my iMac, wirelessly since it will be in another room. I want to watch a variety of sources, all of which I can currently watch at my iMac (videos from youtube, vimeo, etc. in Safari; a lot of video through VLC; a bunch of other bits and pieces in different formats; some listening to Tidal from the standalone app; etc etc. Hence the desire to simply mirror my iMac on the TV.) I was thinking about buying a Samsung 32" Series 5 Full HD LED LCD Smart TV (UA32K5500AWXXY). My intention is to use the optical sound out through a DAC into my amplifier and speakers, so as long as the audio is in sync I'm happy. What I am not clear on is how to mirror the Mac on the TV. I found the 'Mirror for Samsung TV' app, which looks like it should do what I want. Is that right? Does anyone have experience using it? Or should I get an AppleTV? Would a second hand 3rd generation be sufficient? Or is there some advantage to a newer model? Can the AppleTV simply mirror the iMac? That's what I really want. I will never use the tv for apps and I haven't played a game since The Ancient Art of War some thirty year ago, and I don't have or want a Netflix subscription. Thanks for your help!