From a Lions press release:
The Detroit Lions' 70th Thanksgiving Day Classic will feature the Lions hosting long-time rival Green Bay Thursday, November 26 at 12:30 p.m. ET. The Lions' Thanksgiving Day game at Ford Field will be aired live nationally on FOX.
This year's Lions-Packers game on Thanksgiving Day will renew a holiday rivalry that dates back to 1951. This year's game marks the 19th time the Lions have battled the Packers on Thanksgiving, with Detroit holding an 11-6-1 (.647) advantage. The Lions have played Green Bay more than any other opponent in the Thanksgiving Day series.
For 13 consecutive years from 1951-63, the Lions and Packers met on Thanksgiving, with the Lions claiming a 9-3-1 record during that span.
The Lions-Packers Turkey Day tilt marks the fourth time since 2001 that the two teams will play in Detroit on Thanksgiving and the third at Ford Field.
The remaining portion of the team's 2009 regular and preseason schedule will be announced at a later time.