To avoid repetition, the early history of Tombstone Rock may be read in the UNM Daily Lobo article dated March 11, 1993. Since then, though, there was an evolutionary process that took place with the show. After Stacy Coleman and Lisa Arellano left KUNM for other offerings in 1993-4, Reiner was left carrying the torch for a while. Then an enthusiastic friend and musician, Tommy T. Rapisardi, offered to help with the show, having past experience with technical equipment and knowledge of Tombstone Rock's music. After getting certified with the FCC and KUNM, Tom began hosting alternate weeks with Reiner on Tombstone Rock. Tom was instrumental in getting the show known in the underground metal community of the U.S. by establishing initial mail contacts with bands and distributors like Wild Rags.

Reiner and Tom took weekly turns hosting Tombstone Rock, the other hosting the overnight Freeform slot afterwards 1-5am. This slot too became individualized, each having their own style but keeping industrial as a common thread. Then Tom became more and more interested in the hard-hitting and futuristic sounds of the many up-and-coming industrial bands, and began hosting the "Cyber-Age Freeform" exclusively. Although Tom is no longer a host of Tombstone Rock, he fills in sometimes when needed. Reiner continues to host the show solo, and continues the networking with bands, magazines, and local music fans as an ever-increasing vortex of Tombstone Rock popularity.

Music choice for Tombstone Rock has also taken an evolutionary turn. In 1992 when the show first started, bands like Pantera, DRI, Exodus, Megadeth (which led to a lengthy interview with Dave Mustaine), Forbidden, Forced Entry, Type O- (who did an in-studio interview sans Peter), Napalm Death, Anthrax, Deicide, and OLD Metallica were the norm for airplay. Many of the old metal records in KUNM's library are courtesy of Eric Egenes, host of "Radio Nightmares" which aired in the late 80's. As the show progressed and Metallica didn't need airplay from us, more underground bands were part of the show along with heavier, signed bands. Today, the classics of Mercyful Fate, Slayer, Exodus, Black Sabbath (and bands doing Sabbath covers), Destruction, Kreator, and others are being played along side the newest from Emperor, Satyricon, Six Feet Under, Hypocrisy, and Deicide, intertwined with underground metal from around the world. A feature called "Locals Only" has aired since 1993, showcasing New Mexico's best metal and thrash from midnight to 12:30am.