What I'd do to walk into a best buy with ones of those things, turning off 40+ HDTV's at once and watching the employees scramble to get them back on! :auslach_2:
By far the most useful spot would be the doctor's office where they have the same crappy programming (Okra, Dr. Pills, Ellen Degenerate, etc) and no way to switch the channels (glass enclosing). I'd like to see the expressions on all those nurses and receptionists faces when the T.V magically switches to something manly like Cops or ESPN.