diff --git a/README.rst b/README.rst
index 4a2eb27..0e9889b 100644
--- a/README.rst
+++ b/README.rst
@@ -23,9 +23,11 @@ discussed in the video.
 * `Episode 1: What are snippets and do I need them?`__
 * `Episode 2: Creating Basic Snippets`__
 * `Episode 3: What's new in version 2.0`__
+* `Episode 4: Python Interpolation`__
 
 __ http://www.sirver.net/blog/2011/12/30/first-episode-of-ultisnips-screencast/
 __ http://www.sirver.net/blog/2012/01/08/second-episode-of-ultisnips-screencast/
 __ http://www.sirver.net/blog/2012/02/05/third-episode-of-ultisnips-screencast/
+__ http://www.sirver.net/blog/2012/03/31/fourth-episode-of-ultisnips-screencast/
 
 
diff --git a/doc/UltiSnips.txt b/doc/UltiSnips.txt
index 97af874..d14cdc5 100644
--- a/doc/UltiSnips.txt
+++ b/doc/UltiSnips.txt
@@ -63,6 +63,7 @@ make a great introduction to UltiSnips, illustrating its features and usage.
 http://www.sirver.net/blog/2011/12/30/first-episode-of-ultisnips-screencast/
 http://www.sirver.net/blog/2012/01/08/second-episode-of-ultisnips-screencast/
 http://www.sirver.net/blog/2012/02/05/third-episode-of-ultisnips-screencast/
+http://www.sirver.net/blog/2012/03/31/fourth-episode-of-ultisnips-screencast/
 
 
 1.1 Requirements                                     *UltiSnips-requirements*