to fulfill FCC public service and Children's Television Act requirements that were shown exclusively on WTBS). As a byproduct of a national broadcast deal reached between Turner/Time Warner and Major League Baseball that granted TBS rights to carry regular season and postseason games involving various MLB teams (ending its team-specific focus on games involving the Atlanta Braves that traced before it achieved national distribution), TBS eventually gave up its superstation status altogether on October 1, 2007, when the TBS cable channel and WTBS formally separated their programming schedules and branding. The former Atlanta broadcast feed concurrently changed its call letters to WPCH-TV (rebranding as "Peachtree TV") and began targeting its programming exclusively toward its home market, limiting its distribution within North America (outside the Atlanta market) to Canadian television providers that were already receiving the station prior to the TBS split. The separation of TBS from its founding Atlanta parent left the WGN national feed – which became known as Superstation WGN in November 2002 and then as WGN America in May 2008 – as the last remaining superstation to be transmitted nationwide through all multichannel television distribution methods, whereas the other six remaining superstations are available only through satellite television. Into the 2000s, WGN America increasingly relied less on WGN-TV program simulcasts as fewer syndicated programs seen on the Chicago feed were able to be given national "full-signal" clearances, opting to plug holes in the schedule with more "SyndEx-proof" syndicated programs. (Programming shared between the national and local WGN feeds in later years consisted of a limited number of syndicated programs and selected feature films; most Chicago Cubs and White Sox baseball and select Bulls basketball games; select local news and public affairs programs; and certain local and syndicated specials.) The channel also chose not to carry newscasts and Chicago-originated lifestyle and entertainment programs that WGN-TV added to its schedule as the station began to better emphasize news and other locally produced content starting in 2008. Following the Tribune Company's emergence from Chapter 11 bankruptcy protection amid a debt-laden 2007 leveraged buyout by real estate investor Sam Zell and subsequent takeover by three private equity firms (Oaktree Capital Management, JPMorgan Chase and Angelo, Gordon & Co.), Tribune unveiled plans to turn WGN America into a conventional basic cable network incorporating original programming content, to increase the channel's visibility and stave off potential defections from television providers because of the