product displacement

According to Wikipedia, this is called "product displacement".

The practice of product displacement is also frequently seen on reality television programs which do not have clearance to display the logos or products of non-sponsor companies.

Product displacement can also refer to brands/companies deliberately modifying their name or logo in an attempt to make people see the logo and realize that the logo/name is not correct.

Product displacement is usually achieved via digital pixelation, though prior to the widespread availability of computer post-production, stagehands would cover up brands on bottles, etc., using tape, or by using fake labels.

According to Danny Boyle, director of 2008 film Slumdog Millionaire, the makers had to resort to "product displacement" when companies such as Mercedes refused to allow their products to be used in non-flattering settings.

The current issue, by way of commentary, carries a CD titled "Product Displacement," with advertising slogans embedded in the lyrics, a bit of whimsy brought forth by bands like the Baptist Generals and the New Black.

Product displacement is the removing of trademarked products from primarily visual media in order to avoid the payment of licensing fees, if the trademark owner objects, or if the broadcaster would prefer not to publicise a product for free, if the owners have not paid for it to be included in a programme.