Having portrayed Keith Morrison on SNL, Bill Hader geeks out at getting to actually meet the man himself (skip ahead to 1:40) when taken on a behind-the-scenes tour of Dateline. Hader immediately recognizes the episode they've got in the bay and quotes some of his favorite lines to Morrison.
When Morrison first saw Hader's impression of him, he "didn't know whether to shit or go blind".
They talk about his narration for Dateline episodes (certain inflections) and what it's like when Morrison knows who the guilty party are.
The duo does a promo together at the end (7:44), and Hader breaks.
How would you react upon meeting your idol?