diff --git a/BizHawk.Client.Common/movie/tasproj/TasLagLog.cs b/BizHawk.Client.Common/movie/tasproj/TasLagLog.cs
index 889affa8d7..345df229d0 100644
--- a/BizHawk.Client.Common/movie/tasproj/TasLagLog.cs
+++ b/BizHawk.Client.Common/movie/tasproj/TasLagLog.cs
@@ -11,6 +11,9 @@ namespace BizHawk.Client.Common
 	{
 		private readonly SortedList<int, bool> LagLog = new SortedList<int, bool>();
 
+		// TODO: eventually we want multiple levels of history
+		private readonly SortedList<int, bool> RemovedFrames = new SortedList<int, bool>();
+
 		public bool? this[int frame]
 		{
 			get
@@ -55,20 +58,38 @@ namespace BizHawk.Client.Common
 
 		public void Clear()
 		{
+			if (LagLog.Any())
+			{
+				RemovedFrames.Clear();
+				foreach (var lag in LagLog)
+				{
+					RemovedFrames.Add(lag.Key, lag.Value);
+				}
+			}
+
 			LagLog.Clear();
+			
 		}
 
 		public void RemoveFrom(int frame)
 		{
 			if (frame > 0 && frame <= LagLog.Count)
 			{
+				RemovedFrames.Clear();
+
 				for (int i = LagLog.Count - 1; i > frame; i--) // Reverse order because removing from a sorted list re-indexes the items after the removed item
 				{
+					RemovedFrames.Add(i, LagLog[i]);
 					LagLog.RemoveAt(i);
 				}
 			}
 			else if (frame == 0)
 			{
+				RemovedFrames.Clear();
+				foreach (var lag in LagLog)
+				{
+					RemovedFrames.Add(lag.Key, lag.Value);
+				}
 				this.Clear();
 			}
 
@@ -96,5 +117,15 @@ namespace BizHawk.Client.Common
 				}
 			}
 		}
+
+		public bool? History(int frame)
+		{
+			if (RemovedFrames.ContainsKey(frame))
+			{
+				return RemovedFrames[frame];
+			}
+
+			return null;
+		}
 	}
 }
diff --git a/BizHawk.Client.Common/movie/tasproj/TasMovie.cs b/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
index 7e41a6934c..ed00cd525a 100644
--- a/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
+++ b/BizHawk.Client.Common/movie/tasproj/TasMovie.cs
@@ -79,7 +79,8 @@ namespace BizHawk.Client.Common
 				{
 					State = StateManager[index],
 					LogEntry = GetInputLogEntry(index),
-					Lagged = LagLog[index + 1]
+					Lagged = LagLog[index + 1],
+					WasLagged = LagLog.History(index + 1)
 				};
 			}
 		}
diff --git a/BizHawk.Client.Common/movie/tasproj/TasMovieRecord.cs b/BizHawk.Client.Common/movie/tasproj/TasMovieRecord.cs
index f98441c21d..ec588f31ba 100644
--- a/BizHawk.Client.Common/movie/tasproj/TasMovieRecord.cs
+++ b/BizHawk.Client.Common/movie/tasproj/TasMovieRecord.cs
@@ -7,6 +7,7 @@ namespace BizHawk.Client.Common
 	{
 		public KeyValuePair<int, byte[]> State { get; set; }
 		public bool? Lagged { get; set; }
+		public bool? WasLagged { get; set; }
 		public string LogEntry { get; set; }
 
 		public bool HasState
diff --git a/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.ListView.cs b/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.ListView.cs
index 8e10b9155b..3c66772e6a 100644
--- a/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.ListView.cs
+++ b/BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.ListView.cs
@@ -91,8 +91,6 @@ namespace BizHawk.Client.EmuHawk
 				return;
 			}
 
-
-
 			if (columnName == FrameColumnName)
 			{
 				if (Emulator.Frame == index)
@@ -109,6 +107,12 @@ namespace BizHawk.Client.EmuHawk
 						LagZone_FrameCol :
 						GreenZone_FrameCol;
 				}
+				else if (record.WasLagged.HasValue)
+				{
+					color = record.WasLagged.Value ?
+						LagZone_Invalidated_FrameCol :
+						GreenZone_Invalidated_FrameCol;
+				}
 				else
 				{
 					color = Color.White;
@@ -134,6 +138,12 @@ namespace BizHawk.Client.EmuHawk
 							LagZone_InputLog :
 							GreenZone_InputLog;
 					}
+					else if (record.WasLagged.HasValue)
+					{
+						color = record.WasLagged.Value ?
+							LagZone_Invalidated_InputLog :
+							GreenZone_Invalidated_FrameCol;
+					}
 					else
 					{
 						color = Color.FromArgb(0xFFFEEE);