The link for "Chuck Knapp" is wrong.  Wikipedia does not currently have him in the system. 
 The "real Chuck Knapp" can be found on pavekmuseum.org and wrko.org 
 Knapp has been involved in "Christian" Radio this past decade, but I remember him from circa '73/'74.  He was fairly irreverent and a loose cannon.  His morning show was called "Knapp in the Morning" and every so often he'd call that out and occassionally mixed in a "Crap in the Morning" instead.  At the end of a promo for some "consumer loan" operation, he 'recommended' that people go down to their office and "get ripped off by the high interest rates".  KSTP eventually reigned him in by promoting him to program director.