The Television Bureau of Advertising is preparing for the fall launch of its ePort cross-media sales platform, reports MediaPost.

ePort will let members, ranging from TV stations to ad agencies, send and request proposals for ad buying on TV as well as online and on other digital media. The TVB has 21 broadcast groups and two sales rep firms already signed on and is hoping to bring the rest on board before the fall launch.

Spot Buy Spot, a Chicago-based technology firm, will manage the platform. The TVB is also planning a November initial launch for ePort, with more functionality and services, coming online in March of 2008.