TV advertising and idempotence

Reading this and reflecting on my own experience started to make me think about the nature of commercials on TV.
In our house we rarely watch live TV - mostly delayed or semi-live. Semi-live is the term used to describe starting after the show/event has started and being able to skip the commercials. Delayed I am taking to mean some time after the show/event is over.
There are several programs (e.g. repeats, highlights, old movies) that are in a sense timeless. I might go back days or weeks after the recording to watch. And therein lies the rub.
Idempotence is a mathematical term that roughly means "when you invoke a function you get the same answer every time you invoke it." If we think of language as like invoking functions, there are words that definitely cause us difficulties. Tomorrow for example gives a different answer every day. Next Wednesday gives a different answer every week....
So when we are looking at delayed TV, advertisements that crop up saying, "watch xxx tomorrow" become meaningless when I am watching a delayed program after the presentation of xxx.
To make advertising more meaningful, a couple of things could help - at least help we delayed TV crowd.

1. Insert time relevant advertising at the moment of watching the program
2. If it isn't possible to insert advertising (contracts, agreements, technology, cost or whatever), then make sure that the advertisements represent time in an idempotent way. Give Date/Time in absolute terms and not just in relative terms for example.

Right now, one of the main reasons to watch delayed is to avoid the advertisements. That does the job well for me. But f the advertisements were harder to avoid and more time of viewing relevant, then maybe they would reach me better.