diff --git a/.gitignore b/.gitignore
index c0a042b..67f1363 100644
--- a/.gitignore
+++ b/.gitignore
@@ -14,3 +14,5 @@ build/alt/a.out
 build/alt/image.fs
 **/.DS_Store
 /a.out
+/build/cas.out
+/build/chrtbl.out
diff --git a/README.md b/README.md
index 79d90b9..ef1e27f 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,10 @@ A second notebook with missing sources has been
 discovered and scanned.  New files are being added to the scans
 directory as they are typed in!
 
+### January 2010
+
+Unixv0 is running on a real PDP-7 at the Living Computer Museum. [YouTube link](https://www.youtube.com/watch?v=pvaPaWyiuLA)
+
 ## Building pdp7-unix
 
 pdp7-unix requires [Perl5](https://www.perl.org/) to build.