Albums will always use album-based leveling, and mixed playlists will use track-based leveling.
Currently albums will use the peak track level, but I think this should be changed so that it uses the average level, as using the peak level does not mix well in a playlist that contains other albums or tracks.
It has been requested that there be some way of marking an album as being a "mixtape" when it's actually a collection of tracks that have been taken from multiple sources though.
It seems that your radio shows might also fall under this category.
I wonder - is this music, or is it a talk show? Marking an album as a Podcast will force the tracks to use track-based leveling, rather than album-based leveling.
Even if it's music, perhaps this would work as a temporary measure?
Perhaps files with a Media Sub Type of Radio should use the same rule as Podcasts.
On TV shows which are grouped as "albums" the individual track volume levelling is used
Videos will always use "track-based" leveling, unless they are Music Videos. (which are treated as music)