Keep Circulating the Tapes: For the longest time, the "third verse" version of "Friends in Low Places" was never commercially available. The third verse has proven extremely popular, as the crowd sings it by itself on the Double Live album.
For years, his TV concert specials. "This Is Garth Brooks" (1992) and "Garth Live From Central Park" (1997) were released on VHS in 1992 & 1998 respectively, but both went out-of-print relatively quick, while "This Is Garth Brooks II" (1994) saw its planned VHS release canceled, and "Garth Brooks Ireland & Back" (1998) was long forgotten after its initial NBC airing (save for a rare CMT rerun in 2002). All four specials were finally released on DVD in a box set in 2006, albeit with several edits made to all of them (and "Ireland & Back" being retitled "Garth Brooks Live From Dublin").
"It's Your Song" was released to radio in two forms: the live recording from Double Live, and an alternate studio version which is now very hard to find. (And people want to find it, since he corpses during the live version.)
Throw It In: "Friends in Low Places" has an audible click near the end when someone opens a beer can. Garth also screams "Push, Marie!" a few seconds later, in reference to his guitarist's wife, who was in the hospital at the time.
"Mr. Right" on the Ropin' the Wind album, has Garth chuckling and saying "You guys!" in the pause after the instrumental break in the second chorus.
What Could Have Been: The entire face of 1990s country music could've been changed if Mark Chesnutt had released his (considerably more downbeat) version of "Friends in Low Places" instead of Garth.
Garth did do the demo for the song (the last demo he'd ever have to do), and he claims that Capitol was holding the song for him, anyway.
How would Chris Gaines be treated if The Lamb were actually made?