If you like the original Ghosts, check out Horrible Histories, Yonderland, and Bill if you can find them. HH is on Hulu. The core group of Laurence Rickard, Jim Howik, Simon Farnby, Martha Howe-Dougles, Ben Willbond, and Mathew Baynton wrote and appeared in them all. Most of them also pop up in other series--Willbond was in an episode of Inside No. 9, for example, and Baynton guest starred on the US Ghosts.