Well if it's an advertisement for another game made by the company or something during a loading screen, then this may be alright.
However if you're talking to an NPC in lets say fallout 3, it would be annoying for them to say something along the lines of "kill the raiders then come back and enjoy the 23 refreshing flavors of Dr. Pepper."
However if you're talking to an NPC in lets say fallout 3, it would be annoying for them to say something along the lines of "kill the raiders then come back and enjoy the 23 refreshing flavors of Dr. Pepper."