Friends of mine at a small casual SF convention did something very much in the spirit of these ideas.
They moved a chair, a small couch (loveseat), and some potted plants and ashtrays from the lobby areas near the elevator, into the elevator. One of them acted as a talk show host, and others as announcer, stagehand, and bandleader. Whenever someone got on the elevator, they'd invite them to sit on the couch, and then start interviewing them.
Then the rest of us moved the elevator-lobby couches on the remaining floors to be directly facing the elevator doors, and then sat in them and became TV viewers. When the elevator doors opened on a floor, the viewers on that floor would pretend they just tuned to that channel, and as they began closing, they'd pretend they were changing the channel.
- surreAL


