diff --git a/src/BizHawk.Client.EmuHawk/MainForm.Movie.cs b/src/BizHawk.Client.EmuHawk/MainForm.Movie.cs
index b0c1d8b988..f97519c365 100644
--- a/src/BizHawk.Client.EmuHawk/MainForm.Movie.cs
+++ b/src/BizHawk.Client.EmuHawk/MainForm.Movie.cs
@@ -12,6 +12,7 @@ using BizHawk.Emulation.Cores.Consoles.Nintendo.Gameboy;
 using BizHawk.Emulation.Cores.Consoles.Nintendo.NDS;
 using BizHawk.Emulation.Cores.Consoles.Sega.gpgx;
 using BizHawk.Emulation.Cores.Consoles.Sega.PicoDrive;
+using BizHawk.Emulation.Cores.Consoles.Sega.Saturn;
 using BizHawk.Emulation.Cores.Nintendo.NES;
 using BizHawk.Emulation.Cores.Nintendo.SubNESHawk;
 using BizHawk.Emulation.Cores.Sega.MasterSystem;
@@ -218,7 +219,7 @@ namespace BizHawk.Client.EmuHawk
 				}
 			}
 
-			if (Emulator is NDS nds && nds.IsDSi)
+			if (Emulator is NDS { IsDSi: true } nds)
 			{
 				movie.HeaderEntries.Add("IsDSi", "1");
 
@@ -228,16 +229,15 @@ namespace BizHawk.Client.EmuHawk
 				}
 			}
 
-			if ((Emulator is NES nes && nes.IsVS)
-				|| (Emulator is SubNESHawk subnes && subnes.IsVs))
+			if (Emulator is NES { IsVS: true } or SubNESHawk { IsVs: true })
 			{
 				movie.HeaderEntries.Add("IsVS", "1");
 			}
 
-			if (Emulator is IGameboyCommon gb)
+			if (Emulator is IGameboyCommon { IsCGBMode: true } gb)
 			{
-				//TODO doesn't IsCGBDMGMode imply IsCGBMode?
-				if (gb.IsCGBMode) movie.HeaderEntries.Add(gb.IsCGBDMGMode ? "IsCGBDMGMode" : "IsCGBMode", "1");
+				// TODO doesn't IsCGBDMGMode imply IsCGBMode?
+				movie.HeaderEntries.Add(gb.IsCGBDMGMode ? "IsCGBDMGMode" : "IsCGBMode", "1");
 			}
 
 			if (Emulator is SMS sms)
@@ -253,26 +253,31 @@ namespace BizHawk.Client.EmuHawk
 				}
 			}
 
-			if (Emulator is GPGX gpgx && gpgx.IsMegaCD)
+			if (Emulator is GPGX { IsMegaCD: true })
 			{
 				movie.HeaderEntries.Add("IsSegaCDMode", "1");
 			}
 
-			if (Emulator is PicoDrive pico && pico.Is32XActive)
+			if (Emulator is PicoDrive { Is32XActive: true })
 			{
 				movie.HeaderEntries.Add("Is32X", "1");
 			}
 
-			if (Emulator is VirtualJaguar jag && jag.IsJaguarCD)
+			if (Emulator is VirtualJaguar { IsJaguarCD: true })
 			{
 				movie.HeaderEntries.Add("IsJaguarCD", "1");
 			}
 
-			if (Emulator is Ares64 ares && ares.IsDD)
+			if (Emulator is Ares64 { IsDD: true })
 			{
 				movie.HeaderEntries.Add("IsDD", "1");
 			}
 
+			if (Emulator is Saturnus { IsSTV: true })
+			{
+				movie.HeaderEntries.Add("IsSTV", "1");
+			}
+
 			if (Emulator is MAME mame)
 			{
 				movie.HeaderEntries.Add(HeaderKeys.VsyncAttoseconds, mame.VsyncAttoseconds.ToString());
diff --git a/src/BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs b/src/BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs
index b260ccca2e..b96be5e132 100644
--- a/src/BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs
+++ b/src/BizHawk.Emulation.Cores/Consoles/Sega/Saturn/Saturnus.cs
@@ -127,5 +127,7 @@ namespace BizHawk.Emulation.Cores.Consoles.Sega.Saturn
 
 		public new void StoreSaveRam(byte[] data)
 			=> _saturnus.PutSaveRam(data, data.Length);
+
+		public bool IsSTV => _isArcade;
 	}
 }