Funny because it is true to life. WKRP took some real radio stories and inserted them into the show.
I used to produce radio ads for an appliance store that sold TVs, stereos, and VCRs. The owner wasn't quite as slick as the owner of Del's Stereo Shop, and it was in the 90s rather than the 70s like this, but I did get the "friends and family discount" on a TV and a VCR.