Tributes to David Letterman, Part 31 of 31: Bill Murray 1980, 2015

To commemorate the 5th anniversary of Dave retiring from late night television (his last show was on May 20, 2015), I've put together a series of "first and last" appearances, the latter paying tributes in their own ways to the last giant of late night (h/t Jason Zinoman).
Part 31. Bill Murray
1. October 6, 1980
2. May 19, 2015
The 2015 guest appearance comes from Andrew Lynch's superb UA-cam upload, linked here: • Video