system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5:Why can't shows like Mythbusters show brands in their TV shows?

They always put tape over it or cover it in some other way, I've seen this done in a lot of other shows as well (DigitalRev)
gpt
The presence of one brand may piss off one of their advertisers, who may produce a competing brand of the same product.

i.e. They are seen using a Coca-Cola product and now Pepsico refuses to advertise on a show that promotes their competition.