| 1990 | Caught the attention of comedy legend George Carlin after a set at Caroline's Comedy Club in New York, Carlin's verdict, 'Smart and funny,' became the defining endorsement of Caldwell's career. |
| 1995 | Landed the hosting role for ESPN's 'Sports Figures,' making him one of the few stand-ups to cross into sports television as a primary host rather than a guest spot. |
| 2000 | Racked up six appearances on CBS's 'Late Show with David Letterman,' a record for a stand-up that signaled Caldwell had become a house favorite at the most coveted late-night stage of the era. |
| 2003 | Worked with CBS to develop a sitcom based on his life as a former civil engineer, demonstrating the kind of crossover appeal that kept him in demand beyond the stand-up circuit. |
| 2007 | Released the comedy album 'I'm No Epidemiologist', adding a recorded catalog to an already active touring and television career. |
| 2010 | Made three appearances on 'The Late Late Show' and taped a Comedy Central debut on 'Live at Gotham,' two of the milestone television credits that established his national profile. |
| 2015 | Toured with Jon Stewart and became a recurring name on SiriusXM Radio and the nationally syndicated Bob and Tom Show, reaching audiences well beyond the club circuit. |
| 2018 | Released 'The Trip Home' on Discogs, adding to a recorded body of work that reflects his long career of smart, profanity-free material. |
| 2021 | Appeared on TBS's 'Conan,' one of his most recent national television credits and a capstone on a run of late-night appearances that began with Letterman two decades earlier. |
| 2022 | Joined the Ivy League of Comedy touring roster, performing alongside hand-picked professional stand-ups in a touring package that brought his clean, collegiate-friendly material to theater audiences nationwide. |
