Iron Giant, The Easter Egg - Half-Life on TV?!

When Hogarth is at home during the beginning of the movie he decides to watch TV. The program is a cheesy monster movie with a scientist who bears a striking similarity to a certain Black Mesa employee. Right as the power is going out and the TV is turning off the scientist on TV is being killed by a monster brain. The brain has completely engulfed his head and for a split second you see its taken on a very familiar shape as he staggers around...