it depends on the source. “LiveTV” can be a bit of a misnomer… sometimes it’s a live digital stream from, say, Plex or Crackle, and those cannot be paused. Sometimes it’s a live stream from your own tuner or from pseudoTV/dizquetv (a stream of your own content), and those can be paused by creating a playback buffer of the paused content (for TV tuner content), or just referencing the local media (for pseudoTV/dizquetv content).