Merlin in hogwarts ❗️discontinued

The hat

Watch the video for missing info please.

Then the hat twitched. A rip near the brim opened wide like a mouth -- and the hat began to sing:
"Oh, you may not think I'm pretty,
But don't judge on what you see,
I'll eat myself if you can find
A smarter hat than me.
You can keep your bowlers black,
Your top hats sleek and tall,
For I'm the Hogwarts Sorting Hat
And I can cap them all.
There's nothing hidden in your head
The Sorting Hat can't see,
So try me on and I will tell you
Where you ought to be.
You might belong in Gryffindor,
Where dwell the brave at heart,
Their daring, nerve, and chivalry Set Gryffindors apart;
You might belong in Hufflepuff,
Where they are just and loyal,
Those patient Hufflepuffis are true And unafraid of toil;
Or yet in wise old Ravenclaw,
if you've a ready mind,
Where those of wit and learning,
Will always find their kind;
Or perhaps in Slytherin
You'll make your real friends,
Those cunning folk use any means
to achieve their ends.
So put me on! Don't be afraid!
And don't get in a flap!You're in safe hands (though I have none)
For I'm a Thinking Cap!" The whole hall burst into applause as the hat finished its song. "So we've just got to try on the hat!" Ron whispered to Harry. "I'll kill Fred, he was going on about wrestling a troll." Professor McGonagall now stepped forward holding a long roll of parchment."When I call your name, you will put on the hat and sit on the stool to be sorted," she said.
When it was Merlins turn
"Emery's Merlya" was called out through the hall.
"Did she say Emery's?" "Wasn't Emery's Merlins surname?" "no way!"
All Merlin did was walk through the hall and sit down on the old oak stall.
"Hello again Merlin. Long time no see! How has the old Queen of magic and dragon lady been?" "Hello again Henry good to see you again. I'm doing fine. Sooooooo am I going to get sorted again and which house?" "you do realise what Dumbledore has been up to right? I did want to do this with Harry but that poor boy already has way to much attention And that is coming from a really old hat. Ok let's get this party started. Mmmmm well you have been in every house already. Should we make this year interesting? You do know that Harry Potter is a griffin? Well GRITHERIN! yes that's right the houses of the snake and griffin I could not decided. I and try not to destroy anything but make this intressting!"
The hall was silent..