Complex sentence: In the fourteenth season, Tommy McArdle, the show's producer, began to explore the topic of Irish Travellers more in-depthly, however the topic had not been absent from the program previous to the fourteenth season.
Split into simpler sentences: In the fourteenth season, Tommy McArdle, the show's producer, began to explore the topic of Irish Travellers more in-depthly. The topic had not been absent from the program previous to the fourteenth season.