Kinetic art expressions based on optical and luminous phenomenon as well as painting illusionism. The expression "kinetic art" in this modern form first appeared at the Museum für Gestaltung of Zürich in 1960, and found its major developments in the 1960s. In most European countries, it generally included the form of optical art that mainly makes use of optical illusions, such as op art, represented by Bridget Riley, as well as art based on movement represented by Yacov Agam, Carlos Cruz-Diez, Jesús Rafael Soto, Gregorio Vardanega, or Nicolas Schöffer. From 1961 to 1968, GRAV ("Groupe de Recherche d’Art Visuel") founded by François
Illusion On-Demand which indicates that the domain is no longer controlled by Illusion TV. To date Illusion has been part of two genre events, co-hosting a New York Comic Con afterparty with website Popcultureshock.com and Marvel Comics and joining forces with comic book writer Stan Lee and the Hero Initiative for a charity event during San Diego Comic Con 2007. Additionally, Illusion co-sponsored the 33rd annual Boston Science Fiction Marathon "Incomplete list of channel offerings" Illusion On-Demand Illusion On-Demand is an American VOD Video On Demand cable TV network focused on science fiction and fantasy programming. Illusion launched nationally in October 2007