Well I'm no lawyer and am certainly not cognisant of and of the details/intricacies of Bill's agreement with Metropolis..none of my business either, but since it appears to be being discussed here, I'll add my bit..for what it's worth.....No disrespect intended with my comments, in fact they're probably just a load of old cobblers.
If I were to try and put myself in Bill's shoes in this, or a similar situation, pre-contract...Well if I was willing (albeit grudgingly) to contractually sign away the rights of this particular live performance and the things that went with it, DVD sales etc, as a 'trade off' for this particular performance being broadcast (one-off presumably) on mainstream British national tv, I would expect/demand that this broadcast be guaranteed within any contract as a binding clause.
If Metropolis were assuring me verbally (gentleman's agreement style), that this performance would be 100% guaranteed to be shown on national tv, how could they have any problem including such a guarantee in a contract?...indeed with a waiver attached along the line of, any failure of the said broadcast to appear within a sensible and agreed time frame and any rights to the intellectual property would be relinquished and signed over to Mr. Nelson..in other words, a safety clause for Bill. A fair exchange and one which would cause no problems to Metropolis , if their intentions were honourable.
Any refusal on their behalf to accept such a clause in the contract, would set alarm bells ringing!...surely?......Under such a refusal, probably the appropriate cause of action would have been to give them a wide birth....Easy for me to say I know, and once again no disrespect intended..and always easy in hindsight...but one has to look after one's own interests as well.
It's such a shame that this has happened to a genuinely nice person like Bill..a man that gives so much..This sort of unfortunate circumstance always leaves a sour taste, one that can linger for quite a while...but hopefully not, hopefully onwards and upwards!...I know all your fans and followers here are always behind you Bill and will wish you their very best as always...
Hopefully Bill, in any similar future ventures, you (and your legal team) will have a strong 'safety net' in place.
All the best