Interactive television (also known as ITV or iTV) is a form of media convergence, adding data services to traditional television technology. Throughout its history, these have included on-demand delivery of content, as well as new uses such as online shopping, banking, and so forth.
Term. Main definition. Door Knob Menu. A type of room service menu that a housekeeper can leave in the guest room. A doorknob menu lists a limited number of breakfast items and times of the day that the meal can be served.
