Glad you're enjoying them, ROB.
Volume 3 does have some more comedy (Nothern Italy
, Mystery of the Blues
and Scandal of 1920
) but nothing quite like Barcelona & Prague. Those 2 are as zany as it gets. Without giving anything away, I think you'll enjoy "Northern Italy" for the humour. It's in "Tales of Innocence".
For more conversation on this episode/s, check out these threads if you so desire:
Prague, August 1917
(Just a small note that you are watching VOLUME 1, 2 and 3. Not "Season" since they were shown on TV in random order.)