diff --git a/lectures/l05_sc.md b/lectures/l05_sc.md
index 8d4a553..21172b4 100644
--- a/lectures/l05_sc.md
+++ b/lectures/l05_sc.md
@@ -18,7 +18,7 @@ date: 2024-02-09
 
 <!--pan_doc:
 
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+<iframe width="560" height="315" src="https://www.youtube.com/embed/WWwDGFx1Z08?si=GxuhbdTRLbs-ML_1" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
 
 -->