So far it seems that
Sheila is doing Beyond the Fringe.
Stephanie is doing That Was the Week That Was.
Kelsey is doing Monty Python.
Jackie is doing Spitting Image.
Norh is doing Blackadder.
Jillian is doing Not the Nine O’Clock News
Gabriela is doing Hugh Laurie (maybe with a bit of Stephen Fry)
Jessica is doing Eddie Izzard.