The Columbophile website:
https://columbophile.com/buy-my-book/

All of the Columbo adventures can be found here!
https://archive.org/details/columbo/Columbo.S01E00.1968.Prescription.Murder.720p.BluRay.mkv

Here is a Sunny Jain performance featuring the same lineup Calgary got to see:
https://www.youtube.com/watch?v=zIYIn7yTtTo

The original version of 10000 ways to die:
https://web.archive.org/web/20190320135151/http://www.alexcox.com/freestuff/10000_WAYS_TO_DIE.pdf

The self-titled album by Buck:
https://www.youtube.com/playlist?list=OLAK5uy_nnc1Qwj38SvQCqskiMudmPBMJdY9tOpjg