Before the January 31, 2010 cross-sell expansion, Mega Millions was the only multi-jurisdictional lottery whose drawings were carried nationally, instead of airing only on stations in participating jurisdictions. Chicago-based cable superstation WGN-TV simulcast Mega Millions drawings on its national WGN America feed immediately following WGN's 9pm (Central Time) newscast. Following the cross-sell expansion, WGN also began airing Powerball drawings nationally. WGN served as a default carrier of both major games where no local television station carried either multi-jurisdictional lottery's drawings. Both drawings were removed from WGN America in late 2014 when it ceased carrying WGN's newscasts.
On October 13, 2009, the Mega Millions consortium and Multi-State Lottery Association (MUSL) reached an agreement in principle to cross-sell Mega Millions and Powerball in American lottery jurisdictions, with the two groups referred to as the "Mega Power Lottery" by many users. The expansion occurred on January 31, 2010, as 23 Powerball members began selling Mega Millions tickets for their first drawing on February 2, 2010; likewise, 10 Mega Millions members began selling Powerball tickets for their first drawing the next day. Montana (joining Mega Millions on March 1, 2010) was the first jurisdiction to add either game after the cross-sell expansion. Nebraska (March 20, 2010), Oregon (March 28, 2010), Arizona (April 18, 2010), Maine (May 9, 2010), Colorado and South Dakota (the latter two on May 16, 2010) also have joined Mega Millions since the expansion.
Mega Millions (which began as The Big Game in 1996 and renamed, temporarily, to The Big Game Mega Millions six years later) is an American multi-jurisdictional lottery game; it is offered in 44 states, the District of Columbia, and the U.S. Virgin Islands. The first (The Big Game) Mega Millions drawing was in 2002; see below. (What is now Mega Millions initially was offered in six states; the logo for all versions of the game following the retiring of The Big Game name featured a gold-colored ball with six stars to represent the game's initial membership.)