This is odd. I’ve heard quite a bit of discussion of Hillary’s health on several different talk shows. This had to be a corporate decision(s) at some point as it started with WABC, then was followed by 400 stations cutting his show off near the same time.
Very unlikely that 400 separate stations cut of his show at "near the same time' and all replaced it with a previous show.
Instead, what probably happened was that whoever controlled the satellite uplink decided to pull the plug and replaced the current show with a specific earlier show.