From 9 PM to 11 PM Eastern.
This is a rebroadcast of the 1958 NFL Championship Game between the Baltimore Colts and the New York Giants (with interviews and commentary).
So far, all they have shown is interviews with and profiles of the participants. It is a veritable "Who's Who". Tom Landry, Vince Lombardi, Pat Summerall, Frank Gifford, Rosey Grier, Johnny Unitas, and my personal favorite, Art Donovan (what a character that Dude is!). In all, 17 players, coaches, and administrators involved in that game are in the Pro Football Hall of Fame. Unparalleled in NFL History (so far).