9. A system for allowing an operator to update a functionality characteristic of an interactive television program guide implemented on a user television equipment, the system comprising: an operator server for remotely supplying a markup language document to the interactive television program guide implemented on the user television equipment; and a client processor for i) updating the functionality characteristic of the interactive television program guide based on the markup language document, and ii) for generating a program guide display screen on the user television equipment having the functionality characteristic of the interactive television program guide as updated based on the markup language document.
9. A system for allowing an operator to update a functionality characteristic of an interactive television program guide implemented on a user television equipment, the system comprising: an operator server for remotely supplying a markup language document to the interactive television program guide implemented on the user television equipment; and a client processor for i) updating the functionality characteristic of the interactive television program guide based on the markup language document, and ii) for generating a program guide display screen on the user television equipment having the functionality characteristic of the interactive television program guide as updated based on the markup language document. 16. The system defined in claim 9 wherein the markup language document is a Hyper Text Markup Language document, a Dynamic Hyper Text Markup Language document, or an Extensible Markup Language document.