diff --git a/homeassistant/components/webostv/media_player.py b/homeassistant/components/webostv/media_player.py
index 5e58cdf7a2f..4652d6385c1 100644
--- a/homeassistant/components/webostv/media_player.py
+++ b/homeassistant/components/webostv/media_player.py
@@ -30,8 +30,7 @@ from homeassistant.const import (
     CONF_NAME,
     ENTITY_MATCH_ALL,
     STATE_OFF,
-    STATE_PAUSED,
-    STATE_PLAYING,
+    STATE_ON,
 )
 from homeassistant.helpers.dispatcher import async_dispatcher_connect
 from homeassistant.helpers.script import Script
@@ -121,8 +120,6 @@ class LgWebOSMediaPlayerEntity(MediaPlayerDevice):
 
         # Assume that the TV is not muted
         self._muted = False
-        # Assume that the TV is in Play mode
-        self._playing = True
         self._volume = 0
         self._current_source = None
         self._current_source_id = None
@@ -172,7 +169,7 @@ class LgWebOSMediaPlayerEntity(MediaPlayerDevice):
         if self._current_source_id == "":
             self._state = STATE_OFF
         else:
-            self._state = STATE_PLAYING
+            self._state = STATE_ON
 
         self.update_sources()
 
@@ -325,16 +322,12 @@ class LgWebOSMediaPlayerEntity(MediaPlayerDevice):
     @cmd
     async def async_mute_volume(self, mute):
         """Send mute command."""
-        self._muted = mute
         await self._client.set_mute(mute)
 
     @cmd
     async def async_media_play_pause(self):
-        """Simulate play pause media player."""
-        if self._playing:
-            await self.media_pause()
-        else:
-            await self.media_play()
+        """Client pause command acts as a play-pause toggle."""
+        await self._client.pause()
 
     @cmd
     async def async_select_source(self, source):
@@ -343,12 +336,9 @@ class LgWebOSMediaPlayerEntity(MediaPlayerDevice):
         if source_dict is None:
             _LOGGER.warning("Source %s not found for %s", source, self.name)
             return
-        self._current_source_id = source_dict["id"]
         if source_dict.get("title"):
-            self._current_source = source_dict["title"]
             await self._client.launch_app(source_dict["id"])
         elif source_dict.get("label"):
-            self._current_source = source_dict["label"]
             await self._client.set_input(source_dict["id"])
 
     @cmd
@@ -389,15 +379,11 @@ class LgWebOSMediaPlayerEntity(MediaPlayerDevice):
     @cmd
     async def async_media_play(self):
         """Send play command."""
-        self._playing = True
-        self._state = STATE_PLAYING
         await self._client.play()
 
     @cmd
     async def async_media_pause(self):
         """Send media pause command to media player."""
-        self._playing = False
-        self._state = STATE_PAUSED
         await self._client.pause()
 
     @cmd
diff --git a/tests/components/webostv/test_media_player.py b/tests/components/webostv/test_media_player.py
index 4dcda9eb908..b0be238f971 100644
--- a/tests/components/webostv/test_media_player.py
+++ b/tests/components/webostv/test_media_player.py
@@ -21,6 +21,7 @@ from homeassistant.const import (
     CONF_HOST,
     CONF_NAME,
     SERVICE_VOLUME_MUTE,
+    STATE_ON,
 )
 from homeassistant.setup import async_setup_component
 
@@ -78,7 +79,7 @@ async def test_select_source_with_empty_source_list(hass, client):
     await hass.services.async_call(media_player.DOMAIN, SERVICE_SELECT_SOURCE, data)
     await hass.async_block_till_done()
 
-    assert hass.states.is_state(ENTITY_ID, "playing")
+    assert hass.states.is_state(ENTITY_ID, STATE_ON)
     client.launch_app.assert_not_called()
     client.set_input.assert_not_called()