I remember B96 occasionally playing a disco classic, usually the really big ones like Gloria Gaynor's "I Will Survive" or Village People's "YMCA". However, they would also play some of the "post-Disco" or mix tracks more associated with 102.7 WBMX such as Lime's "Angel Eyes".

Gary Spears, during his 2nd stint on B96 in the early 90s, hosted a short-lived weekend syndicated program the station was airing called "The Retro Show" which showcased 70s and 80s disco/rhythmic pop hits. Very hard to find online as I could only find one show on Mixcloud.