favorite tma episodes go
The band that played so badly people died
Playing Uno with the reaper
Every statement Oliver Banks or Gerry Keay is in (I'm especially fond of the Keay family. I know Mary is a bitch but their entire dynamic is alluring for me. Maybe it's just the goth in me speaking though.)
The one where Jon was away and the rest of the staff tried to take statements from people but in each separate case it ended in a disaster and they realized they can't function as an archive without the Beholder's special boy (because that was a hilarious episode)
The entirety of S3 where Jon gets yoinked like every other episode (getting either kidnapped go be forcibly moisturized, hunted for sport or otherwise actively traumatized)
It's hard to pick a favorite but generally it's either the ones I can make fun of or the ones about The End, especially the one where the dude won the gamble by cheating. That's probably the one I go back to the most.