I'm doing good. I'm doing has been found in 5 phrases from 5 titles
01:28:52 I'm doing good. I'm doing...
According to Jim :: Old Friends(2002)
00:02:16 I'M DOING GOOD. I'M DOING GREAT.
American Idol: The Search for a Superstar :: Episode #12.4(2013)
Blue Bloods :: Black and Blue(2011)
00:14:12 I'm doing good, sir, I'm doing good.
Joe Dirt 2: Beautiful Loser(2015)