You need to skip ahead to about 19 minutes, it's very long, & there's some audio sync issues. But it still rocks.

From the livestream info: "Tonight at Toronto's The Second City, a memorial to Paul O’Sullivan, who died in a car accident near his home outside Peterborough in May, 2012. O’Sullivan was a Second City alumni and regular Improv partner of such well-known comedians as Martin Short and Colin Mochrie.""