Bristol arena

As time passes, maybe folklore takes over and glosses over facts, or maybe my memory of the time is poor.

North East in the70s/80s was a hotbed of ice-hockey - yet you dont mention that sport in your list. Many in the NE and wider hockey community will name Hall and the sporting club (SC) as the start of the demise. Newcastle Cobras were created at a cost to NE hockey. When the sporting club let them go, the damage was done and even the Fins could not repair the damage with Newcastle Jesters. 

I had the impression the only thing that meant the basketball came out the SC better than the ice hockey and went on to what we know today was due to the sacrifice and work of those who saved it from a similar fate to the hockey side - basketball legacy is I would argue of the current owner and others who at the demise of sporting club put in the hours, footwork and sacrifice and not of any great legacy plan from the SC.

Falcons maybe are the one the SC legacy was more positive perhaps - provided the stands that got decent crowds in and drew in international players especially from cross the border and at that time while the club still had a feel of a traditional club you popped into for a beer, meals and players were in clubhouse at the same time. 

United - what happened there I reckon would have happened even if he had not gone down the SC path. Football was the core and the attention focus.

racked my brain - and stuck at three who tried the multi team model
Newcastle - well covered in this thread
Man United - was good fun at the time and some decent euro nights. big plans to leave stretford s/c and play in a new arena on car park by the clock end. then they lost interest
Glasgow Rangers - I am sure there must be folk who can write some books on the role and impact rangers had on both British and Scottish basketball

what was your fourth? Think I have seen folk talk about merseyside and Everton - was that a formal ownership tie up in the same way as these three were? Dont know anything about this one - or if it is not that, then what the fourth is.

I believe Mersey Tigers were run by Everton FC community section not the actual club itself.

Yep.
West Brom and Norwich currently have community programmes that run junior nbl teams

Technically Mersey Tigers had nothing to do with Everton. They came about when the Football club pulled all the funding.

Everton Tigers were ran by Everton in the Community - the charitable arm of the football club which was completely separate from the football as you say.

London Broncos have had many incarnations. I'm not sure why the partnership with Harlequins didn't work. It sounds like a good fit.
London Broncos now play at Ealing Trailfinders Sports Club.
Now, there is a chance that both London Broncos and Ealing Trailfinders could be playing top flight rugby next season. London Broncos are one of the teams applying to replace Toronto Wolfpack in Super League, whilst there is the possibility that Ealing Trailfinders will be promoted to the English Premiership, along with Saracens, without having to play a game. There is speculation that the Premiership will be increased to 14 clubs.
I would be in favour of both of these. Rugby league should have a London team in the Super League for it to be a national sport. And it would be great to have four London clubs in the Premiership for the London double header.
4 London clubs
4 Southwest clubs
4 Midlands clubs
2 Northern clubs.

Wow, Ruggo knowledge showing out from someone besides me on this board.

If Chesterdonnelly can just say that he prefers League  to yawnion then I might have a new friend

I absolutely loved Broncos at Brentford & then Quin's RL, to the extent that I even had a season ticket one year, trekking all the way down from the Midlands. Mrs S. even joined in the fun attired in a team shirt.

Either driving down, or Megabus to Victoria, train to Twickenham, a quick visit to one of the last remaining Wimpys and a saunter over to the Stoop.

I love basketball and only love RL just a notch less.

Big rugby fan myself.........but back to basketball.
What got you into hoops this year Chester instead of egg chasing?

To be fair it is an impressive scheme and the regeneration opportunity which will help environment and economic aspects and create employment is great.