I had no idea that New Year's Treats were a thing!! Thank you very much for posting this. What other special episodes exist?

Also, I know Sam Ryder from Eurovision and he seems like a real sweetie.

Starting from the beginning of the playlist.

https://www.youtube.com/playlist?list=PLRWvNQVqAeWL3AuFGhzlcU3KYtKTcTA_E

Champion of Champions also exists. There is a YouTube account that curates them in properly maintained playlists. The official TM account tends to lack in that regard.

I'll have a looksee, thanks

Here's a playlist of all special episodes: https://www.youtube.com/playlist?list=PLoNILXkbAYWLtkHUoEorenmyHt6yblFCw

Here's a different playlist containing nearly everything (not yet updated with the seasons that are still in the process of being released, so AUS S5 and the very newest UK series): https://www.youtube.com/playlist?list=PLj3wnRdyoKVRM9DqNzJnXD6XORLla6LxK

There also the pre-season interviews that are a special task in itself.

That's very handy, thank you!