Very interesting. I think this ties in with Milton and his responses. His trigger seems to be when people display happiness...he responds in kind.
The biggest response always comes with "The Price Is Right"...everything is right with the world when it's on ...at least to Milty.
Unusual thing...the stage show of TPIR is coming to town soon. When the TV ad came on (with the same theme music) Milty began to dance and vocalize, just like the beginning of the show. He kept looking at the TV even after the commercial was over like, "Is it over, already?"