In 2004, former MTV video jockey Adam Curry, in collaboration with Dave Winer – co-author of the RSS specification – is credited with coming up with the idea to automate the delivery and syncing of textual content to portable audio players. Podcasting, once an obscure method of spreading audio information, has become a recognized medium for distributing audio content, whether for corporate or personal use. Podcasts are similar to radio programs in form, but they exist as audio files that can be played at a listener’s convenience, anytime or anywhere.
PodShow Inc. was founded in San Francisco, California in October 2004 by Adam Curry and Ron Bloom, as a digital media network, with the aim of helping people publish and market their podcasts, and to help listeners find podcasts that suit their interests.
In August 2005, PodShow received about $8.85 m in Venture Capital from the Sand Hill Road firms Kleiner Perkins, Sequoia Capital, and Sherpalo Ventures. PodShow set up company headquarters in San Francisco, California in a temporary office South of Market Street. In February 2006, Curry announced Podshow L.A., a production division being set up by Mark Yoshimoto Nemcoff.
On August 23, 2005, PodShow announced the launch of the Podsafe Music Network. The site allows musicians or record labels to upload Podsafe music into their system so that podcasters may download it for use on their podcasts, as well as the ability to sell music to listeners.
In September 2005, PodShow acquired Podcast Alley, a directory that can be used to help people find and subscribe to podcasts.
In September 2006, BT PodShow, a service co-branded with British Telecom was launched for the UK and Ireland.  On September 29, 2006, PodShow Inc. announced that the company had raised a second round of venture funding from new and original investors, totaling $15 million, led by DAG Ventures. In July 2008, mevio secured $15 million in a Series C funding round led by Crosslink Capital and including Kleiner Perkins Caufield & Byers, Sequoia Capital, Sherpalo Ventures, and DAG Ventures. Mevio intends to use the investment to continue expansion of its broadband entertainment offering and to launch new vertical entertainment networks. Mevio had a small stable of flagship podcasts, including Adam Curry’s Daily Source Code, and latterly No Agenda hosted by Curry and John C. Dvorak. Other shows included The Dawn and Drew Show (from October 2005 to October 2008), Madge Weinstein‘s Yeast Radio (from July 2005 til April 2008), CC Chapman’s Accident Hash, Podshow Radio, Reaching for Lucidity, The Frank Truth, Pop17, The Scene Zine, Naive London Girl Podcast, Unleashed, tech vidcast, GeekBrief.TV (from December 2005 to June 2010), Madpod, Alex Balcerski’s Ride The Pine, It Could Be Worse…, The Alex Show Podcast and Cranky Geeks.