CosmiDVR is a "Live Channels" addon so it works on devices such as Nvidia Shield, MiBox S, KM9Pro and KM3, etc.

Features

• Timeshift, Rewind/Pause/Forward any live stream (works for m3u8/HLS and mpegts) if you can play the stream then you can use this feature.
• DVR Recording any live stream
  a) Schedule through the guide and record it even if you are not watching tv
  b) Instant record the channel you are watching.
  c) Record Series (require Android 8+ devices)
  d) Recording Time offsets, Start early, End late
  e) Watch recorded show while it's Recording
  f) Record up to 10 streams simultaneously
• Auto updated EPG with the ability to manually refresh or set frequency
• Multiple playlist support (premium)
• Multiple EPG Sources per playlist
• Favorites Section
• Select the categories you want to import
• Home Screen Integration with Favorites and Categories with live preview (require Android 8+ devices)
• Edit/Fix TV Guide tags per channel in order to fix any EPG/guide issues.
• Auto populated genres
• Change Channel Numbers (premium)
• Change Genre groups per channel (premium)
• Google Translated to: Spanish, French, Portuguese and German

Try before you buy - All features except the few with (premium) above are available for free to test for 14 days, there is no subscription, but there is a Lifetime Premium price for $19.99 and you can install it on all your Android TV OS devices.

Playstore Link: https://play.google.com/store/apps/details?id=com.cosmiquest.tuner

Subreddit for CosmiDVR is https://www.reddit.com/r/CosmiDVR/

YouTube Channel: https://www.youtube.com/channel/UCOWt3rAZDDpEf3UrupWK2xw/videos