OK, the answer has been found...
In ARCADE, when you show All Games, it does not include BIOSes. So to see Tourvision, you must choose BIOS from the folders on the left.
This is different to MAMEUI that shows BIOSes in with All Games.
I don't know why ARCADE is different, I guess someone requested it long ago.
Ah, thanks for telling me, ecept on the current Arcade version 0.189 there is no "Tourvision" section on the BIOS folder