My disappointment is that they are now (slightly) past the time when the real owner of Highclere was helping Howard Carter discover King Tut's tomb. I wish there was a hat tip to that discovery just to tie the (real) property's owner of that time to the Downton family.
Other than that, I just hope Isis (an Egyptian goddess - ha! the irony) is just pregnant or suffering indigestion from eating her master's sock - she is a lab after all.