It's the annual Doors Open Toronto and the only broadcaster in the mix offering access to some behind-the-scenes real life interaction is Moses Znaimer's ZoomerPlex on Jefferson Ave. in Liberty Village.
On May 24 and 25th, a Saturday and a Sunday, the structure that's home to AM740, Classical 96.3 (now apparently called "The New Classical FM"), Vision TV and a host of other broadcasters will allow the public to traipse through the building to observe how the sausage is made.
There's also the TV Museum, which has a ton of rare and vintage televisions on display from the very beginning of the medium.
"Enjoy a behind-the-scenes tour, see how radio/television shows are made, meet the DJs, view Moses Znaimer’s famous collection of vintage televisions and radios, and catch a live-to-air concert."
There's more info, including the hours, here.