Preparing some items for upcoming installments of "This Day in TV History," I was reminded that CBLT Toronto has operated on three different analog channels: started on 9, then switched to 6, and eventually wound up on 5. It struck me that though a lot of stations in the U.S. and Canada have changed channels over the years (especially in the early days, when they were still working out spacing and allocations), there probably aren't too many others that have operated on three (or more) different channels over their history. Can you think of any? (Remember, DTV channels don't count -- strictly analog assignments...)