McDonald's logo appears in the program as a subliminal image

American cuisine program Cooking network "Cooking Iron Man" being broadcasted in "Food Network", when one viewer noticed something red for a moment was confirmed by frame advance, how much that I discovered that the McDonald's logo was inserted as a subliminal image. The purpose is unknown, and the relationship with McDonald's is not known at this time.

Details are as follows.
This is the movie that I verified. This program was televised on January 21, 2007 in the US time.

YouTube - Food Network Subliminal Advertising?

The following sites are very hot.

The Food Network is now running McDonalds subliminal advertisements. - The Something Awful Forums

In addition to this, there are many other overseas blogs spilling out, and when you summarize the contents roughly, first of all it is an opinion that this violates broadcasting ethics. However, the subliminal effect is basically inserted in an unconscious time, so if you notice it just by watching like this time it is not a subliminal so there are no problems and no opinion that there is no effect .

Either way, why was it such a thing under circumstances ...?

Subliminal effect - Wikipedia

Subliminal message - Wikipedia, the free encyclopedia