He talks a little about Police Squad! about 4:25 into the interview.

Leslie brings along a trusty old friend.
(From "Late Night," air date: 3/16/83)

Leslie Nielsen Can't Stop Farting | David Letterman (https://www.youtube.com/watch?v=icqHbPTXgJo)

icqHbPTXgJo

Related:

(Original airdate: 12/06/93) Leslie Nielsen didn't go anywhere without his fart machine in 1993.

Leslie Nielsen Brings His Fart Machine To "Late Night" | Late Night with Conan O’Brien (https://www.youtube.com/watch?v=k1ztkOcJrNE)

k1ztkOcJrNE

The Best of Leslie Nielsen Farting on TV (https://www.youtube.com/watch?v=YBsPOHKOU7c)

YBsPOHKOU7c