I had an interesting conversation recently. Allow me to offer it to you in all of its (vague, for purpose of anonymity)
An agency exec told me that a Fortune 500 client recently had its internal marketing teams plan for a new budget with no TV spend involved. Essentially, they had to devise a way to match TV's historic reach while using all of the nontraditional sources that are the rage these days. The TV budget was eventually allocated, but it got them thinking much more about new techniques.