It's several years old but with the Comcast news, the commentariat is distinguishing between on demand programming and appointment based programming. On NBC news tonight Brian Williams made a jocular reference to appointment-based news. Of course with Tivo, everything is on demand so for many of us appointment-based TV hasn't existed for years. But it's a great phrase and quite extensible. I will begin attempting to convince Toby that the era of on-demand walks is over. All walks are now appointment-based and I have the appointment book. How do you say that in dog?