Christian Siriano on Project Runway Season 19 and His Partnership With Pinterest TV

PS: The challenges are so creative and timely — who contributes the ideas? And where does the inspiration come from?

CS: We try to make the challenges exciting and as relevant to what is happening in fashion as much as we can. I think a lot comes from what is happening in fashion in that moment. Of course, the producers also need to make sure it will be entertaining for an audience who loves fashion, but might not know that much about it.