My only experience at Boradview Station has been trnaferring over to take the streetcar.
If you're coming in eastbound from Castle Frank, Broadview is where you'll cross the Bloor Viaduct with a view over the Don Valley River and the DVP.
You have to walk through some dark corridors to reach the streetcar connections upstairs.
You'll find an impressive streetcar platform above, along with a few fare inspectors.
The next station is Chester.