High CPU Usage on macOS from videosubscriptionsd Process

I’ve been seeing hight CPU usage on my iMac in the past few days from the videosubscriptionsd process. I don’t know where this came from. There’s a database in my user folder, in /Application Support/videosubscriptionsd/.

Looking in this database with an Sqlite browser, I can see a key saying something about http://www.pbs.org. I don’t use the PBS website, though I’ve certainly visited it at times. I certainly have no subscription to anything on the site.

Anyone else seeing CPU usage from this process? There are several threads on the Apple support forums, but I can’t find any more information about this daemon.