Do TV ads "wear out"?
Broadly speaking, the response generated by a TV ad doesn't change much over time. True "wearout" of a TV ad is rare, and many TV ads could have a longer useful life than advertisers realize. The one real exception to this rule has to do with ads that focus on product news. Such ads will become less effective over time, because the people who are receptive to the message will be persuaded quickly, while those who are not receptive will not be won over by repeated viewings. Saturation of media weight over a short space...