diff --git a/video.cpp b/video.cpp
index a191137..4169533 100644
--- a/video.cpp
+++ b/video.cpp
@@ -85,9 +85,9 @@ vmode_t vmodes[] =
 vmode_t tvmodes[] =
 {
 	{{ 640, 30, 60, 70, 240,  4, 4, 14 }, 12.587 }, //NTSC 15K
-	{{ 640, 30, 60, 70, 480,  8, 4, 33 }, 25.175 }, //NTSC 31K
+	{{ 640, 16, 96, 48, 480,  8, 4, 33 }, 25.175 }, //NTSC 31K
 	{{ 640, 30, 60, 70, 288,  6, 4, 14 }, 12.587 }, //PAL 15K
-	{{ 640, 30, 60, 70, 576,  2, 4, 42 }, 25.175 }, //PAL 31K
+	{{ 640, 16, 96, 48, 576,  2, 4, 42 }, 25.175 }, //PAL 31K
 };
 
 struct vmode_custom_t