Critical Research Failure: He sometimes has a tendency to conflate Billboard and Mediabase data, leading to (among other things) an increasingly inaccurate count of George Strait's #1 singles (since the show started, George has had several songs that went to #1 on the latter but not the former).
He repeatedly credited Joe Nichols' "Believers" as a Phil Vassar-Craig Wiseman co-write when it was actually written by Ashley Gorley, Wade Kirby, and Bill Luther. One wonders how he got that mixed up when Vassar had virtually no outside songwriting credits since his singing career began in late 1999.
One episode played back an interview with Carrie Underwood in which she discussed her difficulty hitting a very high note in "All-American Girl"… followed by an abridged version of the song that left out the high note in question.
For some reason, some songs seem to always be edited for time. One victim was "Gettin' You Home (The Black Dress Song)" by Chris Young, which seemed to lose its second verse almost all the time (leaving just the first verse and the chorus three times), even though the song is a very reasonable 3:33. Same with Uncle Kracker's 3:32 "Smile", which was always missing its bridge ("Don't know how I lived without you…").
Bizarrely, even some very short songs have gotten cuts. "Takin' Off This Pain" by Ashton Shepherd (3:10) was almost always devoid of its second verse, as was "Back That Thing Up" by Justin Moore — even though the latter is a mere two minutes and thirty-six seconds uncut.