Television:
* The IT Crowd: He was a writer on the show for all five series, receiving a BAFTA nomination for his work.
* The Big Fat Quiz of the Year: He is a regular contributor, writing and appearing on the show since its inception.
* Mock the Week: He has written for and appeared on the show multiple times.
* 8 Out of 10 Cats: He has contributed to the show as a writer and performer.
* Have I Got News For You: He has appeared on the show several times as a guest panellist.
* Would I Lie To You?: He has appeared on the show as a guest panellist.
* Never Mind the Buzzcocks: He was a guest panellist on the show.
* The Last Leg: He has written for and appeared on the show.
* The Mash Report: He was a writer for the show.
* Comedy Central at the Comedy Store: He has performed stand-up routines on this show.
Other:
* Stand-up Comedy: He has released several stand-up comedy albums and DVDs.
* Radio: He has appeared on numerous radio shows, including "The News Quiz" and "The Now Show."
* Books: He has written a book titled "Mark Chester's Guide to Life".
This list isn't exhaustive, but it covers some of his most notable works. You can find more information about Mark Chester and his work on his website and various online resources.