Only add watched option to home screen.

Delete unused function from MovieDetails

components/movies/MovieDetails.brs

@@ -11,10 +11,6 @@ sub init()
   m.top.findNode("buttons").setFocus(true)
 end sub
 
-function refresh()
-  itemContentChanged()
-end function
-
 sub itemContentChanged()
   ' Updates video metadata
   item = m.top.itemContent

components/movies/MovieDetails.xml

@@ -40,7 +40,6 @@
   <interface>
     <field id="itemContent" type="node" onChange="itemContentChanged" />
     <field id="selectedAudioStreamIndex" type="integer" />
-    <function name="refresh" />
   </interface>
   <script type="text/brightscript" uri="pkg:/source/utils/misc.brs" />
   <script type="text/brightscript" uri="MovieDetails.brs" />

source/VideoPlayer.brs

@@ -231,7 +231,11 @@ end function
 
 'Opens dialog asking user if they want to resume video or start playback over
 function startPlayBackOver(time as LongInteger) as integer
-  return option_dialog([ "Resume playing at " + ticksToHuman(time) + ".", "Start over from the beginning.", "Watched"])
+  if m.scene.focusedChild.overhangTitle = "Home" then
+    return option_dialog([ "Resume playing at " + ticksToHuman(time) + ".", "Start over from the beginning.", "Watched"])
+  else
+    return option_dialog([ "Resume playing at " + ticksToHuman(time) + ".", "Start over from the beginning."])
+  endif
 end function
 
 function directPlaySupported(meta as object) as boolean