diff --git a/README.txt b/README.txt
index 3ef96c8..65aeea2 100644
--- a/README.txt
+++ b/README.txt
@@ -162,6 +162,12 @@ Setup: /etc/vdr/setup.conf
 	if detected crop area is too small, cut max 'n' pixels at top and
 	bottom.
 
+	softhddevice.Background = 0
+	32bit RGBA background color
+	(Red * 16777216 +  Green * 65536 + Blue * 256 + Alpha)
+	or hex RRGGBBAA
+	grey = 2155905279
+
 	softhddevice.SkipLines = 0
 	skip 'n' lines at top and bottom of the video picture.
 
diff --git a/Todo b/Todo
index 58112fd..9c3b374 100644
--- a/Todo
+++ b/Todo
@@ -39,6 +39,8 @@ video:
     hard channel switch
     yaepghd changed position is lost on channel switch
     pause (live tv) has sometime problems with SAT1 HD Pro7 HD
+    radio show black background
+    radio no need to wait on video buffers
 
 vdpau:
     software decoder path not working
@@ -82,6 +84,7 @@ audio:
     software volume support (could be done with asound.conf)
     Mute should do a real mute and not only set volume to zero.
     Starting suspended and muted, didn't register the mute.
+    Relaxed audio sync checks at end of packet and already in sync
 
 audio/alsa:
     better downmix of >2 channels on 2 channel hardware