Should I buy one?

[Project Alice]

I'm looking into getting an Apple TV 3 or 4. I currently have a Roku 3, but I'd like to move it to a different TV and get an upgrade for the living room. The only channels I use really are netflix, hulu, CW, and plex. I use macs mainly, and I have a macmini hooked up directly to the TV but I can't get it to fit the screen properly.
I know Apple TVs work good with macs and I could just mirror the image over to that instead.

My main concern is this, my TV only takes 1080i, though it does deinterlace it on its own, it still won't take a progressive 1080p signal. I'm too picky to use 720p, 1280x720 shouldn't even be considered "HD" lol.
It's a 50" rear projection sony that I have no need or want to upgrade.
Will this work or should I just get another Roku?

 

[Tech198]

Apple TV 3 and 4 take HDMI outputs. so the projector or whatever your plugging it into, must have HDMI port.

I think if Apple TV doesn't support the resolution , 1080i in this case, it will use the one it can support 720p.

 

[Soondae]

The ATV3 doesn't support the Plex APP so you will want the ATV4 or ATV4K models in order to continue use of Plex. As was mentioned in the previous post, ATV4 only supports HDMI out and yes you can mirror your Mac Mini via Airplay which at times can be very useful.

 

[Project Alice]

My TV has HDMI. It just won't take a 1080p signal. The roku "doesn't support" 1080i either, but it still works set to 1080p. its the same resolution afterall, 1920x1080. I was just hoping someone had experience with that on an ATV.