(Sorry I didn't get back to you in a timely fashion) I see your point but I don't think the difference between TV ads and classified ads is as big as you think

(Sorry I didn't get back to you in a timely fashion) I see your point but I don't think the difference between TV ads and classified ads is as big as you think it is. In both cases the ad content provider is paying the medium to display the ad. For a TV show, the provider is being paid, and therefore subject to the terms of sale (some shows do show on more than one network, for instance, but not until they are "old" episodes). In the US there are even some TV stations that spend a major chunk of their time showing commercials ("infomercials"). In these cases content is not a differentiator. There are also print-based classified-ad (magazines) (Auto-Trader, for example) that don't restrict re-using your ad.