Whenever I see anything about modern escape rooms, I always remember Crystal Maze, a fantastic game show from the 90s in the UK.
More detailed description: https://web.archive.org/web/20050305152830/http://alumni.ox....
I remember being impressed by "Sensor Cell". And some games had one player operating some interface while only the rest of the team could see what was going on, so they had to shout instructions (like the TV show "Knightmare"). I think that's good design.
I'd like to see something like this again, but I don't think it would be commercially viable without a popular license. Bowling and laser tag are both cheaper to build and have more replay value.
We did the one in Islington for a work away day, it was pretty sweet. Just about worked for me and I watched the show back in the 90s ...