The key takeaway from all of this is to actually to foster relationships with all networks and encourage them in turn to bid. There is no point in locking out potential options by having seperate negotiations.
Also, to be fair, the coverage on both networks is incredibly stale and is not often very complimentary of the game. They have not really supported the game very well over the years, not just financially of course but also in terms of PR. So I would be subtly reminding them of this during the negotiations.
That doesn’t necessarily mean that the coverage will be better on another network (refer to cricket and Channel 7) but still I think these relationships have run their course (to be fair probably ran their course 5 -10 years ago)