"But there's a lot of 50's and a lot of boomers and a lot of kids in their 30's that grew up with us"

This quote by Harvey Korman is describing the durability of his profession in the entertainment industry. He is noting that he has actually been able to captivate audiences of any ages, from the Baby Boomers in their 50s to the younger generations in their 30s. He is implying that he has actually had the ability to stay appropriate and popular for many years, as he has had the ability to connect with different generations. He is also suggesting that the younger generations have actually grown up with him, as they have been exposed to his work given that they were kids. This quote is a testament to the success of Harvey Korman's profession, as he has actually been able to entertain audiences of all ages for several years.