A variation on the HHN eye has just been used to advertise the 1998 video game sanitarium on GOG.com, There is also a 2013 horror anthology called sanitarium starring Malcolm Mc Dowell.
Ivor Mairants was a composer on the Lavinder Hill Mob which was filmed in the same studio as the film inserts for the daleks episode of the classic series of doctor who and more recently for the David Tenant Episode the impossible planet and the Satan Pit.
Don't Disney own the rights to sleepy hollow on theme parks every Halloween they have the headless horsemen as part of their parade and the sleepy hollow haunted carriage ride in one of their hotels.
The first picture is about money so it is clearly a reference to the admission fee the second picture is a negative picture of money. So it is saying that after you have been to Halloween Horror Nights, you will have negative money in your account
Instead of referencing a video game, based on Atari 2600 lore could the atari 2600 code name be referencing a property set around something that is buried in the desert.
A shot heard around the world could be referencing a nuclear bomb. Further reinforced by the picture being negative used in film to represent the heat ray.That some have said have turned him mad could be a reference to radiation sickness. Also George Washington= Washington DC a fallout 3 themed house?