I would like to know from which authentic source did Ekta get from that Bheeshma said he will leave Hastinapur if Duryohana became king (shown on 7 aug 2008)
From my knowledge and understanding, Bheeshma vowed that whoever sat at the throne he will serve him as he served his father and he will not leave hastinapur until it's boundaries are saved. Hence, the issue why he didn't die until Yudhistri was King and war was over.
I cannot believe that Beeshma would go back on his vows (correct me if I am wrong) and that duryohan was not to be made king at the early age but was believed that he will be.
I will welcome any comments.