AirReceiver is an easy way to play MKV videos on Apple TV.
It receives video stream from AirStreamer & displays on Apple TV.
No video conversion.
No mess with file sharing config.
Download "AirStreamer - for Apple TV" on Mac AppStore (FREE) to start streaming your videos.

Features:
• FullHD playback.
• Enable 4K HDR playback (require Pro upgrade).
• Surround audios.
• Supports most of video & audio codecs
• Supports lossless audios.
• Supports many subtitle types: SRT, ASS, SMI, MicroDVD...
• Auto-detect subtitle encoding.

Requirements:
• 4K Apple TV for 4K video playback.
• AirStreamer - for Apple TV (FREE) on Mac AppStore.
• High-speed WiFi network.

Demo video at https://www.youtube.com/watch?v=WKnLUcoHsFI