By request: Here's the full collection of Will Ferrell's Harry Caray impressions on Late Show. Then both of Harry's appearances on Dave's earlier show on the bird network. The first has been previously uploaded.

Will Ferrell as Harry Caray on Late Show:
1. February 25, 2008.
2. July 21, 2008.
3. August 2, 2010.
4. April 26, 2011. (Note: Incorrectly dated as 2010 in the video.)
5. July 23, 2012.
6. March 16, 2015.
7. May 4, 2015.

Harry Caray on Dave's bird network show::
8. July 31, 1986.
9. March 22, 1989.