diff --git a/docs/_config.yml b/docs/_config.yml
index 454adf58..a3636466 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -42,7 +42,7 @@ robosats:
   default_bond_size      : 3            # In percent (%)
   min_bond_size          : 2            # In percent (%)
   max_bond_size          : 15           # In percent (%)
-  paynym                 : +blackunit9ce
+  paynym                 : +RoboSats
   paynym_code            : PM8TJZRfXHS44bAPebWRFDE6jWunYtMGN8axye7LD7oaY6A2XXYRGXR6jVVXxZv5smCQE1Ryhq58VgLVbg4oFer2P5KU4rT7ANkAHdvXcRXGS5VzDtqQ
   leaddev_paynym         : "+wispymud0cc"
   leaddev_paynym_code    : PM8TJbmeBtJg1m9YY2gq2Uk2QajKvuEgGfh3tM3n7AHHRUJhQ9NZoVCheunq62gUxgHi6DtR9NjaomCCw8SByVvnkdQZ4fHe6oTuP2Hw5M1G35KXuZiH
diff --git a/docs/_pages/tutorials/watch/videos-en.md b/docs/_pages/tutorials/watch/videos-en.md
index 6946f7ce..6b67ebf8 100644
--- a/docs/_pages/tutorials/watch/videos-en.md
+++ b/docs/_pages/tutorials/watch/videos-en.md
@@ -13,6 +13,9 @@ src: "_pages/docs/tutorials/videos-en.md"
 #### BTC Sessions (Lightning): Buy and Sell BTC with no ID
 <iframe width="560" height="315" src="https://www.youtube.com/embed/XW_wzRz_BDI" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
 
+#### theBTCcourse: How to Buy & Sell Bitcoin on RoboSats (v0.4.2)
+<iframe width="560" height="315" src="https://www.youtube.com/embed/52snf3x2KKA" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
+
 #### BTC Sessions (Onchain): Build a NON-KYC Stack: Buy, mix and store.
 <iframe width="560" height="315" src="https://www.youtube.com/embed/4gfmm8x2F9M?start=219" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>