drupal-4.7

I'm working on a new (drupal-powered) website for work and there's this page that lists upcoming music events in one of the venues. In this venue, we have a regular event that happens every wednesday. Thus, I need a comma-separated list of wednesdays. I don't want to add PHP to any input format besides the one where it's the only filter, so I needed some other way to get this content into my page (which also makes use of other filters, like img_assist, and insert view.)