When I left there, they were beginning to migrate from the LTR system to the DMR system.
When it was LTR, they had 15-20 talkgroups. Shuttles, 3 or 4 security channels, maintenance, IT, game techs, cleaning crew, customer services. Those are the ones that I can remember off the top of my head.
They have a good location now with the hotel. With a height like that, you don't need a lot of power.