Why I think the commercial got lost for a decade.
From The Lost Media Wiki
Here are some theories on why the commercial was lost for a decade.
1. The commercial was in Spanish while other Got Milk? commercials were in English.
2. It turns out that the commercial was made for Mexico and it somehow made its way on Spanish television in the US on networks like Univision despite the fact that I remember it being in English.
3. Not many people care about Got Milk? commercials as there are some others that are still lost but aren't noteworthy and worth a search unlike this one.