The shows were changed, in order to behave like the other areas of the game (arena, vets, stablehand, barn etc)
This means that creating and entering shows will take longer.
You will however get more XP when entering shows.
The new shows have a new property called Events. The more events a show has, the more XP it gives.
A new player creates shows with 10 events. This means that a new player's shows will give 10times more XP than they used to.
There is a new skill for players, and the more shows you create, the higher the skill gets.
The higher the skill gets, the more events your shows have.
For instance, Pirate Princess is creating at the moment shows that have 50 events.
This means that her shows give 50 times more xp than they used to.

There is also a new skill on entering shows. The more shows you enter, the higher the skill becomes.
The higher that skill is, the faster you enter the shows.
When that skill reaches 100% you will enter twice as fast as a player just starting the game.