North Americas' largest British themed model railway show is held every 2 years just north of Toronto, Ontario, called The Great British Train Show.
The club I belong to, The British Model Railway Club of Montreal exhibits a layout every show and this year was no different. Pictures and videos of this years show can be seen here at our club website.

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I also took the opportunity to update/add various how-to articles in the Tips&Tricks section of the website so have a poke around and enjoy.
Cheers
Gene

At the other end of the show was this:
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For those who don't know, Trix Twin was a multiple train control system using 3 rail track. The track base was plastic (Bakelite?) so the rails were all insulated from each other. A movable contact shoe allowed the loco to pickup from the centre rail and its choice of running rail. If you hung catenary, you could run 3 trains at once -- independently. I think it was AC pre-war and DC post.
The layout shown is a creation allowing the track configuration to be changed for every appearance.