diff --git a/hosts/common/programs/go2tv.nix b/hosts/common/programs/go2tv.nix
index 72934db67..084663ece 100644
--- a/hosts/common/programs/go2tv.nix
+++ b/hosts/common/programs/go2tv.nix
@@ -1,17 +1,28 @@
 # TROUBLESHOOTING:
 # - turn the tv off and on again (no, really...)
 #
-# COMPATIBILITY MATRIX:
+# SANITY CHECKS:
 # - `go2tv -u 'https://uninsane.org/share/AmenBreak.mp4'`
 #   - LGTV: works
-# - `go2tv -tc -v /mnt/servo-media/Videos/Shows/bebop/session1.mkv`
-#   - LGTV: works
-#     - LGTV WITHOUT -tc: FAILS
-# - `go2tv -v /mnt/servo-media/Videos/Shows/PaniPoniDash/PaniPoni1.mp4`
-#   - LGTV: works  (even without transcoding!)
 # - `go2tv -u 'https://youtu.be/p3G5IXn0K7A'`
 #   - LGTV: FAILS ("this file cannot be recognized")
 #     - no fix via transcoding, altering the URI, etc.
+# - `go2tv -v /mnt/servo-media/Videos/Shows/bebop/session1.mkv`
+#   - LGTV: works
+# - `go2tv -tc -v /mnt/servo-media/Videos/Shows/bebop/session1.mkv`
+#   - LGTV: works
+#
+# WHEN TO TRANSCODE:
+# - mkv container + mpeg-2 video + AC-3/48k stereo audio:
+#   - LGTV: no transcoding needed
+# - mkv container + H.264 video + AAC/48k 5.1 audio:
+#   - LGTV: no transcoding needed
+# - mp4 container + H.264 video + MP3/48k stereo audio:
+#   - LGTV: no transcoding needed
+# - mp4 container + H.264 video + AAC/44k1 stereo audio:
+#   - LGTV: no transcoding needed
+# - mkv container + H.265 video + E-AC-3/48k stereo audio:
+#   - LGTV: no transcoding needed
 { config, lib, pkgs, ... }:
 let
   cfg = config.sane.programs.go2tv;