The great Scott Fybush, who often contributes terrific insights here, is one of many who have posted to a website he owns called "Top Of The Hour." Essentially, it's a list of sound files encompassing station I.D.s from across North America. 

There's a section for Toronto and Buffalo, some of which go back a ways. From Q107 and Boom to WHTT and WWKB, many stations are represented and the quality is terrific. This collection won't be if interest to everyone but if you're curious about the branding stations in our area have used over the years, here's the perfect place to hear some of them. 

And of course, there are tons of other markets if you're interested in having a listen to those. 

Toronto IDs

Buffalo IDs