Would you advertise another TV network?

Shawn writes:

Question MarkMy friend and I got into an argument the other day about whether or not a ‘Network Television Station’ would play a advertisement for another network station. An example would be if FOX played an ad on CBS advertising one of their shows. If you could give me any information as to if this has been done before in the past that would be awesome. I do not think that a network would ever play a commercial for another station since it would be driving business away but he thinks otherwise.

Any comments?

Filed under: Commercials