Hi...I agree with you wholeheartedly... the show needs to be more consistent.
Sam's happy memories being totally devoid of his brother's presence is purely contrived and totally selfish (ok Sam is selfish and self-centred:), but probably done for ulterior motives other than concerning themselves with the shows' consistency!
It just doesn't ring true.. .Doing a complete U-turn is not what this show is all about....Baaa humbug. xx