Goodbye, Mr. Speaker 8 p.m., Channel 2

Before he retired from the House of Representatives in 1987, Thomas P. “Tip” O’Neill participated in an hourlong profile for WGBH. Tonight, to mark the late congressman’s 100th birthday, which is Dec. 9, WGBH is reairing that 1986 special, which will be introduced by Emily Rooney. Rooney will interview Tip’s son, former lieutenant governor Thomas O’Neill, on “Greater Boston” at 7 p.m.