You can change artwork by opening the captured files Properties and going to the artwork tab.
You can load your own or select one of the suggested images which are based on the Settings > Naming Rules > Artwork Lookup rule.
In the scheduled recording, on the tab "Override Tags" set these correctly to the show/station name so the lookup happens correctly.
Could you please provide further details of the "insulting image" and the recording this is getting selected with.
From CRS @ 07 Mar 2019 06:03