He has appeared on The David Letterman Show, Late Night with Conan O'Brien, and Comedy Central.

"[1] He attended the University of Maine at Farmington, where he realized he wanted to pursue comedy as his career.

He has been a guest host on XM Radio channels 97, Blue Collar Radio, and 99, RawDog Comedy; and, as of 2013, appears weekly on the Portland-based station Coast 93.1-WMGX in a segment called "The World According to Bob.

"[5] On Thursday, September 23, 2010, at 11:02 pm EDT, Marley entered the Guinness Book of World Records with the longest continuous stand-up routine, beating the record held by Lindsay Webb from Australia.

[6] Marley's record was broken by David Scott on April 30, 2013, with a time of 40 hours and 8 minutes.