I most say - this was really refreshing and one of those good take tension of and had a good laught episodes and I adore them. They really add so much color and I am sure we could not take all those too serious episodes on row. There is need for that kind of good humor this episode has.
I most say, they had done perfect choice while picking that actor for little Jack - he really looked like him and managed well acting and being like him. That could have been the problem if that had not done believable enough.
I really think it was very well succeeded episode.