Added 3 DE sections & VLC screenshot

As per #44 for Common Tasks: Watching Videos

common-tasks/watching-videos/en.md

@@ -3,6 +3,28 @@ title = "Watching Videos"
 +++
 # Watching Videos
 
-Solus comes pre-installed with the [GNOME MPV](https://gnome-mpv.github.io/) - a GTK+ frontend for [mpv](https://mpv.io/), enabling you to watch your favorite movies, t.v. shows, DVDs, and Blu-rays.
+Solus comes pre-installed with everything you need to watch your favorite movies, TV shows, DVDs, and Blu-rays.
+
+## Budgie
+
+Budgie includes [GNOME MPV](https://gnome-mpv.github.io/) - a GTK+ frontend for [mpv](https://mpv.io/).
+
+You can open GNOME MPV by clicking its icon in the top panel or by opening the Budgie Menu and looking under "Sound & Video".
 
 {{< altimg "mpv.jpg" "help-center/common-tasks/watching-videos/" >}}
+
+## GNOME
+
+GNOME includes [GNOME MPV](https://gnome-mpv.github.io/) - a GTK+ frontend for [mpv](https://mpv.io/).
+
+You can open GNOME MPV by clicking its icon in the dock or by finding and clicking on it in the Applications Overlay.
+
+{{< altimg "mpv.jpg" "help-center/common-tasks/watching-videos/" >}}
+
+## MATE
+
+MATE includes [VLC](https://www.videolan.org/vlc/) - an open source cross-platform multimedia player written by the VideoLAN project.
+
+You can open VLC by opening the Brisk Menu and looking under "Sound & Video".
+
+{{< altimg "vlc.jpg" "help-center/common-tasks/watching-videos/" >}}