RealNetworks, Inc. is a provider of Internet streaming media delivery software and services based in Seattle, Washington, United States. The company also provides subscription-based online entertainment services and mobile entertainment and messaging services. RealNetworks (then known as Progressive Networks) was founded in 1994 by an ex-Microsoft executive, Rob Glaser and a management team including Phil Barrett, Andy Sharpless, and Stephen Buerkle. The original goal of the company was to provide a distribution channel for politically progressive content. It evolved into a technology venture to leverage the Internet as an alternative distribution medium for audio broadcasts. Progressive Networks became RealNetworks in September 1997. RealNetworks are pioneers in the streaming media markets and broadcast one of the earlier audio events over the Internet — a baseball game between the New York Yankees and Seattle Mariners — on September 5, 1995. They announced streaming video technology in 1997. According to some accounts,[which?] by 2000, more than 85% of streaming content on the Internet was in the Real format.