Hi, 예능감 is not a proper word in Korean language, but it has been used only recently. Although 예능 originally means all kinds of entertainments or performing arts, 예능감 refers the ability to make people laugh or easily adapt to the entertainment TV shows and so on. Yeah, comedians are supposed to have 예능감, but I think 예능감 is used mainly for non-comedians but other professionals such as singers, sportspersons, and politicians so on. Cheers