LiveTV: Construct the TV object immediately.

This was a hangover from the old playback threading model which was just
slowing down startup.

This also fixes the issue of LiveTV hanging when 'Start TV in Program
Guide' is enabled, though I will follow this up with additional
improvements in that area.
(cherry picked from commit 48bf9de)

mythtv/libs/libmythtv/tv_play.cpp

@@ -1346,7 +1346,7 @@ bool TV::LiveTV(bool showDialogs, bool startInGuide)
         RequestNextRecorder(actx, showDialogs))
     {
         actx->SetInitialTVState(true);
-        ScheduleStateChange(actx);
+        HandleStateChange(actx, actx);
         switchToRec = NULL;
 
         // Start Idle Timer