diff --git a/src/emucore/DefProps.hxx b/src/emucore/DefProps.hxx
index a35724704..087fc6ffb 100644
--- a/src/emucore/DefProps.hxx
+++ b/src/emucore/DefProps.hxx
@@ -1864,7 +1864,7 @@ static constexpr BSPF::array2D<const char*, DEF_PROPS_SIZE, 30> DefProps = {{
   { "7e7c4c59d55494e66eef5e04ec1c6157", "Baroque Gaming (Billy Eno)", "", "Warring Worms (2002) (Baroque Gaming)", "", "Homebrew", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "7e8aa18bc9502eb57daaf5e7c1e94da7", "CBS Electronics - Roklan, Joe Hellesen, Joe Wagner", "M8774, M8794", "Wizard of Wor (1982) (CBS Electronics)", "Uses the Joystick Controllers (swapped)", "", "", "", "", "", "", "", "", "", "YES", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "", "" },
   { "7e9da5cb84d5bc869854938fe3e85ffa", "Atari, Ian Shepard - Sears", "CX2604 - 6-99812, 49-75106", "Space War (1978) (Atari) (4K)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
-  { "7e9f088e15b2af9ff3411991393e6b1f", "Atari - Roklan, Joe Gaucher", "CX2679", "RealSports Basketball (12-28-1982) (Atari) (Prototype) (PAL)", "", "Prototype", "", "", "", "", "http://www.atariprotos.com/2600/software/rsbasketball/rsbasketball.htm", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
+  { "7e9f088e15b2af9ff3411991393e6b1f", "Atari - Roklan, Joe Gaucher", "CX2679", "RealSports Basketball (12-28-1982) (Atari) (Prototype) (PAL)", "", "Prototype", "", "", "", "", "http://www.atariprotos.com/2600/software/rsbasketball/rsbasketball.htm", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "NTSC", "", "", "", "" },
   { "7eab0284a0cd1043461d446a08d08cec", "Jone Yuan Telephonic Enterprise Co", "", "Basic Math (Jone Yuan) (4K)", "2600 Screen Search Console", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "7ead257e8b5a44cac538f5f54c7a0023", "Xonox, Anthony R. Henderson", "99006, 6220", "Sir Lancelot (1983) (Xonox) [a1]", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "7eaf009a892f03d90682dc1e67e85f07", "Fabrizio Zavagli", "", "Bounce! (18-03-2003) (Fabrizio Zavagli)", "", "Homebrew", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "", "" },
@@ -2029,7 +2029,7 @@ static constexpr BSPF::array2D<const char*, DEF_PROPS_SIZE, 30> DefProps = {{
   { "89afff4a10807093c105740c73e9b544", "", "", "Pooyan (Unknown) (PAL)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "", "" },
   { "89eaba47a59cbfd26e74aad32f553cd7", "Apollo - Games by Apollo, Ed Salvo, Byron Parks", "AP-2001", "Spacechase (1982) (Apollo) (PAL)", "AKA Space Attack", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "8a159ee58b2f0a54805162984b0f07e5", "Atari - Sculptured Software, Inc., Steve Aguirre", "CX26162", "Fatal Run (1989) (Atari) (PAL) [a]", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
-  { "8a183b6357987db5170c5cf9f4a113e5", "Atari - Roklan, Joe Gaucher", "CX2679", "RealSports Basketball (01-11-1983) (Atari) (Prototype) (PAL)", "", "Prototype", "", "", "", "", "http://www.atariprotos.com/2600/software/rsbasketball/rsbasketball.htm", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
+  { "8a183b6357987db5170c5cf9f4a113e5", "Atari - Roklan, Joe Gaucher", "CX2679", "RealSports Basketball (01-11-1983) (Atari) (Prototype) (PAL)", "", "Prototype", "", "", "", "", "http://www.atariprotos.com/2600/software/rsbasketball/rsbasketball.htm", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "NTSC", "", "", "", "" },
   { "8a42e2c7266439d8997a55d0124c912c", "", "", "Hangman Invader Wordlist (Hack)", "Hack of Hangman", "Hack", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "Hangman (USA)" },
   { "8a49cf1785e3dea2012d331a3ad476e1", "", "", "Boulderdash (10 Blocks Wide) (02-04-2003) (Andrew Davie)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "8a6c84f481acf42abcb78ba5064ad755", "128 in 1 Junior Console", "", "Street Racer (128 in 1 Junior Console) (PAL) (4K)", "Uses the Paddle Controllers (swapped)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "", "", "10 75", "", "", "", "", "" },
@@ -3435,7 +3435,7 @@ static constexpr BSPF::array2D<const char*, DEF_PROPS_SIZE, 30> DefProps = {{
   { "ef76ea05655a0b62cb1018c92b9b4b7d", "Gakken", "010", "Strategy X (1983) (Gakken) (PAL)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "efa1098c7d091b940c2543abe372f036", "Scott Stilphen", "", "E.T. The Extra-Terrestrial (Scott Stilphen) (Hack)", "Hack of E.T. The Extra-Terrestrial", "Hack", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "efb47d70b2965ce689e2c5757616b286", "", "", "Time Test Demo (Eckhard Stolberg) (PAL) (PD)", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
-  { "efd387430a35a659ff569a9a0ec22209", "Atari - GCC", "CX26118", "Millipede (1984) (Atari) (Prototype) (PAL)", "", "Prototype", "", "", "", "", "http://www.atariprotos.com/2600/software/millipede/millipede.htm", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "", "" },
+  { "efd387430a35a659ff569a9a0ec22209", "Atari - GCC", "CX26118", "Millipede (1984) (Atari) (Prototype) (PAL)", "", "Prototype", "", "", "", "", "http://www.atariprotos.com/2600/software/millipede/millipede.htm", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "NTSC", "", "YES", "", "" },
   { "efefc02bbc5258815457f7a5b8d8750a", "CBS Electronics, Richard K. Balaska Jr.", "4L 2520 5000", "Tunnel Runner (1983) (CBS Electronics) [a]", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "" },
   { "effa3a7ce078c6d83bf43174a7bfdb1f", "Thomas Jentzsch", "", "Centipede - Atari Mouse Hack v1.4 (NTSC) (Half-Speed) (Thomas Jentzsch)", "Uses Atari Mouse Controller", "", "", "", "", "{\"notes\":\"Variations cannot be defined\",\"score_addresses\":[\"0xf4\",\"0xf5\",\"0xf6\"],\"score_digits\":6,\"variations_count\":1}", "https://atariage.com/store/index.php?l=product_detail&p=1180", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "", "YES", "", "Centipede (USA)" },
   { "efffafc17b7cb01b9ca35324aa767364", "", "", "Circus Atari (Unknown)", "", "", "", "", "", "{\"score_addresses\":[\"0xaa\",\"0xab\"],\"variations_address\":\"0xa8\",\"variations_count\":8}", "", "", "", "", "", "JOYSTICK", "", "", "JOYSTICK", "", "", "", "", "", "", "", "", "", "", "" },
diff --git a/src/emucore/stella.pro b/src/emucore/stella.pro
index 1cebf6f3c..7f7236cb5 100644
--- a/src/emucore/stella.pro
+++ b/src/emucore/stella.pro
@@ -12207,6 +12207,7 @@ f"Cart.MD5" "000509d1ed2b8d30a9d94be1b3b5febb"
 "Cart.Name" "RealSports Basketball (12-28-1982) (Atari) (Prototype) (PAL)"
 "Cart.Rarity" "Prototype"
 "Cart.Url" "http://www.atariprotos.com/2600/software/rsbasketball/rsbasketball.htm"
+"Display.Format" "NTSC"
 ""
 
 "Cart.MD5" "7eab0284a0cd1043461d446a08d08cec"
@@ -13297,6 +13298,7 @@ f"Cart.MD5" "000509d1ed2b8d30a9d94be1b3b5febb"
 "Cart.Name" "RealSports Basketball (01-11-1983) (Atari) (Prototype) (PAL)"
 "Cart.Rarity" "Prototype"
 "Cart.Url" "http://www.atariprotos.com/2600/software/rsbasketball/rsbasketball.htm"
+"Display.Format" "NTSC"
 ""
 
 "Cart.MD5" "8a42e2c7266439d8997a55d0124c912c"
@@ -22596,6 +22598,7 @@ f"Cart.MD5" "000509d1ed2b8d30a9d94be1b3b5febb"
 "Cart.Name" "Millipede (1984) (Atari) (Prototype) (PAL)"
 "Cart.Rarity" "Prototype"
 "Cart.Url" "http://www.atariprotos.com/2600/software/millipede/millipede.htm"
+"Display.Format" "NTSC"
 "Display.Phosphor" "YES"
 ""